Yunusa, Abdulkadir, Department of Basic and Applied Science, Federal Polytechnic Mubi, Adamawa state, Nigeria
Yusnikusumah, Tri Rizkiana, Research Centre for Ecology, National Research and Innovation Agency of Indonesia
Yusuf Uba, Tasiu , Kalinga University
Yusupov, Ziyoviddin, Institute of Botany of the Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
Yves, Komo Mbarga , University of Maroua

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