“Photoprotective Activity of Geopropolis Produced by Melipona Subnitida (Apidae, Meliponinae) in the Semiarid of the Brazilian Northeast”. Research, Society and Development 10, no. 2 (February 7, 2021): e11210212305. Accessed December 5, 2025. https://rsdjournal.org/rsd/article/view/12305.