“Diversity and Overlap in Pollen Sources of Three Species of Stingless Bees (Apidae, Meliponinae) in Costa Rica”. Apiciencia 3, no. 2 (August 6, 2001): p03208. Accessed September 12, 2026. https://apiciencia.edicionescervantes.com/index.php/apiciencia/article/view/306.