meei yi ng, zaleha shafiei, mariati abdul rahman,s. nagarajan m.p. sockalingam, ahmad shuhud irfani zakaria, alida mahyuddin.  (2020).  antibacterial effects of effective ecoproduce on enterococcus faecalis: an in vitro study.  - journal of international dental and medical research.  861-867. 

zaleha shafiei, zubaidah haji abdul rahim, koshy philip, nalina thurairajah, hashim yaacob.  (2020).  potential effects of psidium sp., mangifera sp., mentha sp. and its mixture (pem) in reducing bacterial populations in biofilms, adherence and acid production of s. sanguinis and s. mutans.  - archives of oral biology.  1-15. 

shafiei z., abdul rahim z.h., philip k., thurairajah n..  (2016).  antibacterial and anti-adherence effects of a plant extract mixture (pem) and its individual constituent extracts (psidium sp., mangifera sp., and mentha sp.) on single- and dual-species biofilms.  - peerj.  1-19. 

azizah ahmad fauzi, zaleha shafiei, badiah baharin, nurulhuda mohd.  (2013).  isolation of lactobacillus from periodontally healthy subjects and its antimicrobial activity against periodontal pathogens.  - sains malaysiana.  42(1):19-24. 

zaleha shafiei, nadia najwa shuhairi, nordiyana md fazly shah yap, carrie-anne harry sibungkil, and jalifah latip.  (2012).  antibacterial activity of myristica fragrans against oral pathogens.  - evidence-based complementary and alternative medicine.  Art no.825362. 

dayang fredalina basri, liy si tan, zaleha shafiei, and noraziah mohamad zin.  (2012).  in vitro antibacterial activity of galls of quercus infectoria olivier against oral pathogens.  - evidence-based complementary and alternative medicine.  Article 632796: 1-6. 

badiah baharin, ns ramzuzzaman, r sufyan, z shafiei, m razali.  (2012).  antibacterial activity of propolis and gelam honey (melaleuca cajaputi) against periodontopathogens.  - journal of clinical periodontology.  39(suppl 13):94.