maluin sofwatul mokhtarah, osman khairul, jaffar farah hanan fathihah, ibrahim siti fatimah.  (2021).  effect of radiation emitted by wireless devices on male reproductive hormones: a systematic review.  - frontiers in physiology.  1-8. 

farah hanan fathihah jaffar, khairul osman, chua kien hui, aini farzana zulkefli and siti fatimah ibrahim.  (2021).  edible bird's nest supplementation improves male reproductive parameters of sprague dawley rat.  - frontiers in pharmacology.  1-6. 

dheephikha kumaraguru, wan nur syuhaila mat desa, khairul osman, noor hazfalinda hamzah, gina francesca gabriel.  (2021).  volatile chemical profiling of unburnt and burnt ron 95 petrol from three oil stations: a preliminary study.  - malaysian journal of analytical sciences (mjas).  776-790. 

farah hanan fathihah jaffar, khairul osman, chua kien hui, aini farzana zulkefli and siti fatimah ibrahim.  (2021).  edible bird's nest supplementation improves male reproductive parameters of sprague dawley rats.  - frontiers in pharmacology.  21-26. 

nur hilwani ismail, khairul osman, aini farzana zulkefli, mohd helmy mokhtar and siti fatimah ibrahim.  (2021).  the physicochemical characteristics of gelam honey and its outcome on the female reproductive tissue of sprague-dawley rats : a preliminary study.  - molecules.  1-25. 

nur hilwani ismail, siti fatimah ibrahim, farah hanan fathihah jaffar, mohd helmy mokhtar, kok yong chin and khairul osman.  (2021).  augmentation of the female reproductive system using honey: a mini systematic review.  - molecules.  1-17. 

noor hazfalinda hamzah, gina francesca gabriel, nurul syuhada haron, khairul osman, nur mahiza md isa.  (2021).  digital approach for gender discrimination from lip prints analysis in malaysian chinese population (klang valley).  - international journal of medical toxicology & legal medicine.  229-233. 

farah dayana rosli, noor hashida hashim, yusmin mohd yusuf, khairul osman, siti fatimah ibrahim, nurul kabir.  (2019).  thymoquinone enhances sperm dna integrity in nicotine-induced infertile male rats.  - tropical journal of pharmaceutical research.  1219-1225. 

gina francesca gabriel, jennifer shalini jheyeaaseelan, dheephikha kumaraguru, khairul osman and noor hazfalinda hamzah.  (2019).  pyrolytic key indicators of burnt porcine tissue in the presence of petrol under outdoor conditions.  - malaysian journal of analytical science.  274-289. 

normaizatul afizah ismail, ravinder kaur santosh singh, athirah ayob, khairul osman, mohamed swarhib shafie, faridah mohd nor.  (2019).  prediction of stature from fragmentary bones by radiographic method: forensic implication.  - international medical journal.  409-413. 

farah dayana rosli, noor hashida hashim, khairul osman, siti fatimah ibrahim, nurul kabir..  (2019).  ameliorative effects of thymoquinone on sperm parameters and testosterone level of nicotine-treated sprague dawley rats.  - brazilian archives of biology and technology.  1-11. 

farah hanan fathihah jaffar, khairul osman, nur hilwani ismail, kok-yong chin and siti fatimah ibrahim.  (2019).  adverse effects of wi-fi radiation on male reproductive system: a systematic review.  - tohoku journal of experimental medicine.  169-179. 

normaizatul afizah ismail, norakmal hisyam abd khupur, khairul osman, ab halim mansar, mohamed swarhib shafie, faridah mohd nor..  (2018).  stature estimation in malaysian population from radiographic measurements of upper limbs..  - egyptian journal of forensic sciences.  1-5. 

syarifah faezah syed mohamad, siti fatimah ibrahim, nur hilwan ismail, khairul osman, farah hanan fathihah jaafar, chew fang nang & farida zuraina mohd yusof.  (2018).  quantification of hsp70 gene expression and determination of capacitation status of magnetically separated cryopreserved bovine spermatozoa at different thawing temperature and time.  - sains malaysiana.  . 

lina s., eliza h., hashida n. h., ibrahim s. f., osman k..  (2018).  androgen receptor and ultrastructural features of nigella sativa oil and nicotine-treated male rat reproductive glands.  - sains malaysiana.  . 

zulaiha a. rahman, siti fatimah ibrahim, nurul atikah osman, farah hanan fathihah jaffar & khairul osman.  (2017).  effect of energy substrate dynamics on mitochondrial activity and oxidative stress levels of in vitro maturing bovine oocytes.  - journal of agricultural science.  14-23. 

gina francesca gabriel, azima ismail, atiah ayuni, khairul osman, noor hazfalinda hamzah.  (2017).  the analysis of thermal decomposition products generated from porcine tissues exposed to outdoor burning conditions.  - malaysian journal of analytical sciences.  585-596. 

lee, l. c., liong, c-y., khairul, o., jemain, a. a..  (2017).  effects of baseline correction algorithms on forensic classification of paper based on atr-ftir spectrum and principal component analysis (pca).  - pertanika science and technology.  767-774. 

khairul osman, noraina mohd bakri, farah hanan fathihah jaffar, nurul atikah osman & siti fatimah ibrahim.  (2017).  the effect of density gradient centrifugation and magnetic-activated cell sorting with the combination of both on bovine spermatozoa kinematics, viability and acrosome status.  - journal of agricultural science.  73-78. 

nur hilwani ismail, khairul osman, farida zuraina mohd yusof, syarifah faezah syed mohamad, farah hanan fathihah jaffar & siti fatimah ibrahim.  (2017).  improvement of post-thaw sperm kinematics and dna integrity of cross-bred bovine sperm by incorporating dgc as selection method prior to cryopreservation.  - journal of agricultural science.  24-31. 

farah hanan fathihah jaffar, khairul osman, jaya kumar & siti fatimah ibrahim.  (2017).  effect of alcohol consumption on the sperm dna integrity : a systematic review.  - journal of agricultural science.  136-144. 

loong chuen lee, seow lay ying, wan nur syazwani wan mohamad fuad, ab aziz ishak, khairul osman.  (2016).  fast and simple forensic red pen ink analysis using ultra-performance liquid chromatography (uplc).  - malaysian journal of analytical sciences,.  224-230. 

fayez a almabhouh, khairul osman, siti fatimah ibrahim, sergey gupalo, justin gnanou, effendi ibrahim, harbindar jeet singh.  (2016).  melatonin ameliorates the adverse effects of leptin on sperm.  - asian journal of andrology.  1-8. 

noraina mohd bakri, siti fatimah ibrahim, nurul atikah osman, nurhaslina hasan, farah hanan fathihah jaffar, zulaiha abdul rahman, khairul osman.  (2016).  embryo apoptosis identification: oocyte grade or cleavage stage?.  - saudi journal of biological sciences.  50-55. 

norhamizan hashim, khairul osman, siti fatimah ibrahim, rosliah harun & rafeah pakri mohamed.  (2016).  kesan psikostres terhadap kerosakan dna dan ketakormalan residu sitoplasma sperma manusia.  - sains malaysiana.  1931-1938. 

loong chuen lee, karldiv tarvin singh shandu, nor syahirah mohamad razi, ab aziz ishak, khairul osman.  (2015).  forensic analysis of blue ballpoint pen inks using ultraviolet-visible spectrometer and ultra-performance liquid chromatograph.  - malaysian journal of analytical sciences.  397 - 401. 

loong chuen lee, intan shafiqa md yunus, wan nur syazwani wan mohamad fuad, ab aziz ishak, khairul osman.  (2015).  statistical discrimination of black ballpoint pen inks using ultra-performance liquid chromatography with principal component analysis.  - journal of analytical chemistry.  374-377. 

s.s.m. faezah, f.m.y zuraina, j.h.f. farah, o.khairul, n.i. hilwani, m.i. iswadi, c.n. fang, i.zawawi, o.m. abas and s.i. fatimah.  (2014).  the effects of magnetic separation on cryopreserved bovine spermatozoa motility, viability and cryo-capacitation status.  - zygote.  22(3):378-386. 

ismail m.i., osman k., ibrahim s.f., jaafar f.h.f., ghani n.a.a., zainalabidin f.a., othman a.m..  (2014).  development of single tubing-type canister for cryo-storage of bull semen and their effect on sperm motility and viability.  - brazilian archives of biology and technology.  194 - 199. 

nur amirah sulaiman, khairul osman, noor hazfalinda hamzah, sri pawita albakri amir hamzah.  (2014).  blunt force trauma to skull with various instruments.  - the malaysian journal of pathology.  33 - 39. 

chee hauteo, sri pawita amir hamzah, khairul osman, atiah ayunni abdul ghani and noor hazfalinda hamzah.  (2013).  post mortem changes in relation to different types of clothing.  - the malaysian journal of pathology.  35(1):77-85. 

a.a. sharifa, j. jamaludin, l.s. kiong, l.a. chia & k. osman.  (2012).  anti-urolithiatic terpenoid compound from plantago major linn. (ekor anjing).  - sains malaysiana.  41(1):33-39. 

c. f. nang, k. osman, s. b. budin, m. i. ismail, f. h. f. jaffar, s. f. s. mohamad & s. f. ibrahim.  (2012).  bovine serum albumin: survival and osmolarity effect in bovine spermatozoa stored above freezing point.  - andrologia.  44(S1):447-453. 

siti fatimah ibrahim, farah hanan fathihah jaffar, khairul osman, syarifah faezah syed mohamed, chew fang nang, nur hilwani ismail, and mohd iswadi ismail.  (2011).  bull spermatozoa motility : optimization of coenzyme q10 and alpha-lipoic acid concentration.  - the iioab journal.  2(5):8-13. 

fawwaz s. al-joudi, fahme a. k. kaid, ismarulyusda ishak, norhazilah mohamed, kairol osman, iskandar zulkarnain alias.  (2011).  expression of human mammaglobin and clinicopathologic correlations in breast cancer: the findings in malaysia.  - indian journal of pathology and microbiology.  54(2):284-289. 

laila suryani elias, eng may lin, ang wee chin, abd aziz tajuddin, shantini a.arasaratnam, suraya aziz, khairul osman & kanaga kumari chellian.  (2010).  pengoptimuman parameter dedahan dalam mamografi digital medan penuh menggunakan rajah merit.  - sains malaysiana.  39(2):299-303. 

rumiza, a.r., khairul, o., zuha, rm., heo, c.c..  (2010).  an observation on the decomposition process of gasoline-ingested monkey carcasses in a secondary forest in malaysia.  - tropical biomedicine.  27(3):373-383. 

zahara abdul manaf, c.c lee, siti fatimah ibrahim, poh bee koon, khairul osman, srijit das, j. mohammad.  (2010).  plasma vitamin c and tocotrienols changes in response to dietary supplementation among young male adults.  - clinica terapeutica.  161(2):121-124. 

fatimah, is; iswadi, im; khairul, o; nurhazilah, m; fadzilah, ms; padzil, arm; srijit, d; mazni, oa.  (2010).  a preliminary study of reactive oxygen species activity within motile boer buck sperm using confocal laser scanning microscope (clsm).  - clinica terapeutica.  161(2):125-128. 

siti balkis budin, faizah othman, s.r.louis, m.abu bakar, m.radzi, k.osman, s.das, j.mohamed.  (2009).  effect of alpha lipoic acid on oxidative stress and vascular wall of diabetic rats.  - romanian journal of morphology and embryology.  23-30. 

zuha, rm; kurahashi, h; chin, hc; osman, k; rashid, ra; abu hassan, r; abdullah, sr; salleh, afm; marwi, ma; omar, b.  (2009).  myospila pudica pudica (stein, 1915) (diptera: muscidae) in peninsular malaysia and its ocurrence on a monkey carrion.  - tropical biomedicine.  26(2):216-218. 

ismarulyusda ishak, jamaludin mohamed, khairul osman, zaleha md isa, zakiah ismail, mohd fairulniza mohd noor & osman ali.  (2009).  status selenium serum populasi di daerah hulu langat, selangor, malaysia.  - sains malaysiana.  38(4):473-481. 

rumiza abd. rashid, khairul osman, mohd iswadi ismail, raja muhammad zuha, rogayah abu hassan.  (2008).  determination of malathion levels and the effect of malathion on the growth of chrysomya megacephala (fibricius) in malathion-exposed rat carcass.  - tropical biomedicine.  25(3):184-190. 

k. osman, s. ibrahim, m. ismail, s. das, m. abd rahman and a. othman.  (2008).  data mining: relationship of sperm kinetics and dna integrity.  - reproduction, fertility & development.  20 (S422) : 102. 

zulkhairi amom, zaiton zakaria, jamaluddin mohamed, azrina azlan, hasnah bahari, mohd taufik hidayat baharuldin, mohd aris moklas, khairul osman, zanariyah asmawi, and mohd kamal nik hassan.  (2008).  lipid lowering effect of antioxidant alpha-lipoic acid in experimental atherosclerosis.  - journal of clinical biochemistry and nutrition.  43(2):88-94. 

siti fatimah ibrahim, khairul osman, srijit das, abas mazni othman, norzaiti abdul majid, mohd padzil abdul rahman.  (2008).  a study of the antioxidant effect of alpha lipoic acids on sperm quality.  - clinics.  64(3):545-50. 

b. siti balkis, r. nor fadilah, a. ezlan, o.khairul, a.b. mokhtar & m. jamaludin.  (2008).  oxidative stress and dna damage in streptozotocin-induced diabetic rats : effects of alpha lipoic acid.  - journal of biological sciences.  622-627. 

a.zulkhairi, z. zaiton,m. jamaluddin, f.sharida, t.h.b. mohd, b. hasnah, h.m. nazmi, o. khairul, a.zanariyah.  (2008).  alpha lipoic acid posses dual antioxidant and lipid lowering properties in atherosclerotic-induced new zealand white rabbit.  - biomedicine & pharmacotherapy.  62(10):716-722. 

siti balkis b, khairul o, wan nazaimoon, faizah o, santhana rl, megat r, mokhtar ab and jamaludin m.  (2007).  alpha lipoic acid reduces the ultra-microscopic vascular changes in streptozotocin induced rats.  - malaysian journal of pathology.  29(Suppl A):187.