Ab Hamid, S., Salleh, M. S., Thevan, K., & Hashim, N. A. (2016). Distribution and Morphometrical Variations of Stingless Bees (Apidae: Meliponini) In Urban and Forest Areas of Penang Island, Malaysia. Journal of Tropical Resources and Sustainable Science (JTRSS), 4(1), 1–5. https://doi.org/10.47253/jtrss.v4i1.586