muhammad imran bin mohd kamal; izfa riza binti hazmi.  (2022).  pengaruh faktor masa dan abiotik terhadap kelakuan keluar masuk sarang lebah kelulut, tetrigona apicalis (smith, 1857) (hymenoptera: apidae).  - serangga.  238-251. 

nurul fatihah abd latip, idris abd ghani, izfa riza hazmi, dzulhelmi muhammad nasir.  (2022).  starvation levels affect behaviors of wild-caught and laboratory-reared oil palm pollinator weevil, elaeidobius kamerunicus (coleoptera: curculionidae).  - insects.  1-11. 

dzulhelmi mn, ahmad norhisham razi, nur-shafiqah farhana kalog, ahmad afandi murdi, suriyanti su, izfa riza hazmi.  (2022).  assessment on pollen carrying capacity and pollen viability of elaeidobius kamerunicus (coleoptera: curculionidae).  - philippine agricultural scientist.  309-314. 

siti nurlydia sazali, izfa riza hazmi, fatimah abang, faszly rahim, abdul aziz jemain.  (2021).  phylogeny and morphometric variation of several weevils species (coleoptera: curculionidae) from malaysia.  - serangga.  183-201. 

ameyra aman-zuki, siti zafirah ghazali, aqilah sakinah badrulisham, izfa riza hazmi, othman nurul wahida, salmah yaakop.  (2021).  proof on the divergence times of two sympatric species, rhynchophorus ferrugineus and r. vulneratus (coleoptera: curculionidae) by molecular clock analysis.  - journal of entomological research society.  11-26. 

nur athirah abdullah, lailatul nadhirah asri, shahril mod husin, aisah shukor, nurul darsani ahmad darbis, kamaruzzaman ismail, hani kartini agustar, norela sulaiman, izfa riza hazmi.  (2021).  influence of physico-chemical characteristics of rembau river, peninsular malaysia, on congregating pteroptyx fireflies.  - environmental monitoring and assessment.  1-12. 

dzulhelmi muhammad nasir, nur-syahirah mamat, nabeel ata abdul muneim, meilina ong-abdullah, nurul-fatihah abd latip, suriyanti su, izfa riza hazmi.  (2020).  morphometric analysis of the oil palm pollinating weevil, elaeidobius kamerunicus (faust, 1878) (coleoptera: curculionidae) from oil palm plantations in malaysia.  - journal of the entomological research society.  275-291. 

syazana jumaan, jahangir kamaldin, rosliza jajuli, izfa riza hazmi.  (2020).  introducing a technique in sustaining adult worker bees of heterotrigona itama (cockerell, 1918) in laboratory to facilitate future health research on kelulut honey.  - malaysian journal of medicine and health sciences.  22-30. 

luqman hakim azhari, azman sulaiman, nasrul rohaini, izfa riza hazmi.  (2019).  fauna of chrysomelid beetles (coleoptera: chrysomelidae) along an elevational gradient at mount fraser, pahang, malaysia.  - agriculture and natural resources.  173-178. 

nur-athirah abdullah,,izfa riza hazmi, lailatul-nadhirah asri, norela sulaiman, azman sulaiman, shahril mod husin, engku muhamad faris engku nasrullah satiman.  (2019).  spider assemblage (arachnida: araneae) in a riparian firefly sanctuary ofsungai chukai, terengganu, malaysia.  - pertanika journal of tropical agricultural science (jtas).  1361-1373. 

nur-athirah abdullah, siti nur fatehah radzi, lailatul-nadhirah asri, nor shafikah idris, shahril husin, azman sulaiman, shamsul khamis, norela sulaiman, izfa riza hazmi.  (2019).  insect community in riparian zones of sungai sepetang, sungai rembau and sungai chukai of peninsular malaysia.  - biodiversity data journal.  1-24. 

nurul fatihah, a.l., muhamad fahmi, m.h., luqman, h.a.,syarifah nadiah, s.m.d.,teo, t.m., izfa riza, h., idris, a.b..  (2019).  effects of rainfall, number of male inflorescences and spikelets on the population abundance of elaeidobius kamerunicus(coleoptera: curculionidae).  - sains malaysiana.  15-21. 

nurul fatihah abd latip, idris abd ghani, izfa riza hazmi, cik mohd rizuan zainal abidin, dewi sartiami, shahrakbah yacob & dzulhelmi muhammad nasir.  (2019).  morphometric comparison of the oil palm pollinator elaeidobius kamerunicus faust (coleoptera: curculionidae) from malaysia, indonesia, and liberia.  - coleopterists bulletin.  746-756. 

siti nurlydia sazali, izfa riza hazmi, fatimah abang, faszly rahim and abdul aziz jemain.  (2018).  morphometric study of the palm weevils, rhynchophorus vulneratus and r. ferrugineus (coleoptera: curculionidae) in view of insular and mainland populations of malaysia.  - pertanika journal of tropical agricultural science.  . 

nur syafika mohd-yusof, nik abdul rahman nik-rashidi, nadiatur akmar zulkifli, salmah yaakop, izfa riza hazmi, and badrul munir md-zain.  (2018).  phylogenetic relationships of heterotrigona itama in malaysia based on coi dna sequences.  - serangga.  . 

luqman h. a., noor nasuha a. a., dzulhelmi m. n., nurul fatihah a. l., muhamad fahmi m. h., teo t. m., idris. a. b. and izfa riza h..  (2018).  diversity and composition of beetles (order: coleoptera) in three different ages of oil palms in lekir oil palm plantation, perak, malaysia.  - serangga.  . 

andi saputra, dzulhelmi muhammad nasir, nur-atiqah jalaludin, madihah halim, asraf bakri, mohammad faris mohammad esa, izfa riza hazmi, and faszly rahim.  (2018).  composition of termites in three different soil types across oil palm agroecosystem regions in riau (indonesia) and johor (peninsular malaysia).  - journal of oil palm research.  . 

siti fatimah samsudin, mohd razif mamat, izfa riza hazmi.  (2018).  taxonomic study on selected species of stingless bee (hymenoptera: apidae: meliponini) in peninsular malaysia.  - serangga.  . 

izfa riza hazmi & sharifah aliya syed sagaff.  (2017).  fireflies population and the aquaculture industry (coleoptera: lampyridae) of the sungai sepetang, kampung dew, perak, malaysia.  - serangga.  217-237. 

muhammad luqman h. a., dzulhelmi m. n., idris a. b. & izfa riza h.*.  (2017).  the potential natural predators of elaeidobius kamerunicus faust, 1878 (coleoptera: curculionidae) in malaysia.  - serangga.  239-252. 

andi saputra, madihah halim, nur-atiqah jalaludin, izfa riza hazmi, faszly rahim.  (2017).  effects of day time sampling on the activities of termites in oil palm plantation at malaysia-indonesia.  - serangga.  23-32. 

aruchunnan, g., ng, y.f., hazmi, i.r. wee, s.l..  (2017).  dung beetle assemblages at three zonation of tasik chini biosphere reserve, pahang using several modified pitfall traps.  - malayan nature journal.  139-158. 

fatin-elina kamarulzaman, dzulhelmi muhammad nasir, nur-syahirah mamat, faszly rahim andizfa riza hazmi.  (2017).  a preliminary checklist of harvestmen (arachnida: opiliones) in malaysia.  - serangga.  65-84. 

alia rizki , i. r. hazmi , th. wagner and a. b. idris.  (2016).  redescription of paleosepharia trunctata laboissiére, 1936, type species of the genus paleosepharia laboissiére, 1936 (coleoptera: chrysomelidae: galerucinae).  - the coleopterists bulletin.  395-398. 

zulfadli, m., izfa, r.h. and alia, r.a..  (2015).  morphology and genitalia characters of nadrana baly, 1865 (coleoptera: chrysomelidae: galerucinae) from sundaland.  - malaysian applied biology journal.  97-108. 

muhaimin, a. m. d., hazmi, i. r. and yaakop, s..  (2015).  colonisation of dung beetles (coleoptera: scarabaeidae) of smaller body size in the bangi forest reserve, selangor, malaysia: a model sampling site for a secondary forest area.  - pertanika journal tropical agricultural science.  519 - 532. 

izfa riza hazmi, thomas wagner.  (2013).  revision of neolepta jacoby, 1884 and related galerucines from the oriental region, including descriptions of two new genera (coleoptera: chrysomelidae: galerucinae).  - the raffles bulletin of zoology.  61(1):73-95.