Vol. 57, No. 1-4, December 2020
Vladimir Senashov, Ivan Parashchuk
https://doi.org/10.18280/ama_a.571-401
Page 1-5
https://doi.org/10.18280/ama_a.571-402
Page 6-13
Samuel Olorunfemi Adams, Rafiu Olayinka Akano, Rauf Ibrahim Rauf
https://doi.org/10.18280/ama_a.571-403
Page 14-21