The Studying the Biological Characteristics of the Stingless Bee Tetrigonilla Collina Smith 1857 (Apidae: Melipona) in Hanoi, Vietnam. VJAS [Internet]. 2021 Aug. 10 [cited 2024 Sep. 20];4(2):1067-76. Available from: http://testvjas.vnua.edu.vn/index.php/vjas/article/view/236