Azonwade, F. E., A. Paraïso, M. G. Tossou, H. Sina, A. E. Kelomey, K. Chabi-Sika, and L. Baba-Moussa. “Pollen Analysis of the Honeys Samples Produced in the Three Phyto-Geographical Zones of Benin”. European Scientific Journal, ESJ, Vol. 13, no. 18, June 2017, p. 528, doi:10.19044/esj.2017.v13n18p528.