Fazlı ÖZTÜRK 2021. Bee Plants of Çatak Valley and Determination of Nectar, Polen and Secretion Groups (Van/Turkey) . ISPEC Journal of Agricultural Sciences. 5, 1 (Mar. 2021), 81–99. DOI:https://doi.org/10.46291/ISPECJASvol5iss1pp81-99.