Masrianih, M. et al. 2022. Pollen collected by stingless bees Tetragonula laeviceps (Smith, 1857) (Hymenoptera: Apidae: Meliponini) from Central Sulawesi. Jurnal Biologi Tropis. 22, 3 (Aug. 2022), 851–856. DOI:https://doi.org/10.29303/jbt.v22i3.3885.