Sierra DJJ. Study of the productivity of pollen and honey from the bee (Apis mellifera), using pollen hunting traps with different periods of stay in the Colmenas, in San Cristobal de Caranqui, Imbabura province. AXIOMA [Internet]. 2011Nov.30 [cited 2025Apr.3];1(7):20-3. Available from: https://axioma.pucesi.edu.ec/index.php/axioma/article/view/343