ArchiveVolume 5, Issue 2, June 2019
Lengbiye Moke Emmanuel, Koto-te-Nyiwa Ngbolua, Lin Marcelin Messi, Mbembo wa Mbembo Blaise, Gédéon Ngiala Bongo, Mutwale Kapepula Paulin, Ngombe Kabamba Nadège, Joséphine Ngo Mbing, Dieudonné Emmanuel Pegnyemb, Pius Tshimankinda Mpiana
Pages: 7-15     Published Online: Sep. 24, 2019
DOI: 10.11648/j.ijbecs.20190502.11        Views 81      Downloads 12
Shervin Assari, Hamid Chalian, Mohsen Bazargan
Pages: 16-23     Published Online: Sep. 24, 2019
DOI: 10.11648/j.ijbecs.20190502.12        Views 90      Downloads 12
Adamu Muktar Owuna, Owuna Jibril Egwu, Yakubu Akuki Hajara, Azamu Ibaku Gowon
Pages: 24-30     Published Online: Sep. 25, 2019
DOI: 10.11648/j.ijbecs.20190502.13        Views 81      Downloads 15
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