ainulkhir hussin, rusmah yusof, mohd yusof nor rahim, frederick dalusim, nor insyirah othman, nazlina ibrahim, muhammad ashraf shahidan.  (2022).  true-positive reflex threshold value for hcv antibody screening test.  - the journal of infection in developing countries.  522-527. 

nur shazwani mohd pilus, azira muhamad, muhammad ashraf shahidan, nurul yuziana mohd yusof.  (2022).  potential of epidermal growth factor-like peptide from the sea cucumber stichopus horrens to increase the growth of human cells: in silico molecular docking approach.  - marine drugs.  1-22. 

te zi yang, yeoh wei heng, muhammad ashraf shahidan, nur nabilah shahidan.  (2020).  a study on chitosan coated polycaprolactone (ch-pcl) microspheres prepared via double emulsion solvent evaporation method..  - materials science forum.  541-548. 

ainulkhir, h., fredolin, l., noor azlan, m.a., ahneez, a.h., nazlina, i. and muhammad ashraf, s..  (2018).  evaluation of a commercial dengue combo rapid test kit for the detection of ns1 and igm.  - tropical biomedicine.  . 

rohaya megat abdul wahab, nurfathiha abu kasim, sahidan senafi, abdul aziz jemain, intan zarina zainol abidin, muhammad ashraf shahidan, shahrul hisham zainal ariffin.  (2014).  enzyme activity profiles and elisa analysis of biomarkers from human saliva and gingival crevicular fluid during orthodontic tooth movement using self-ligating brackets.  - oral health and dental management.  13(2):194-199. 

nurfathiha abu kasim, shahrul hisham zainal ariffin, muhammad ashraf shahidan, intan zarina zainol abidin, sahidan senafi, abdul aziz jemain, rohaya megat abdul wahab.  (2013).  stability of lactate dehydrogenase, aspartate aminotransferase, alkaline phosphatase and tartrate resistant acid phosphatase in human saliva and gingival crevicular fluid in the presence of protease i.  - archives of biological science.  65(3):1131-1140.