ArchiveVolume 9, Issue 4, July 2020
Bui Van Tuyen
Pages: 83-87     Published Online: Jun. 23, 2020
DOI: 10.11648/j.ajap.20200904.11        Views 89      Downloads 33
Jenifer Wothaya Wambugu, Dorothy Ndunge Kyalo, John Mbugua, Regina Mutave
Pages: 88-98     Published Online: Jul. 4, 2020
DOI: 10.11648/j.ajap.20200904.12        Views 58      Downloads 34
Shyngle Kolawole Balogun, Jackson Iheukwumere Osuh, Oluwatosi Olatunde Olotu
Pages: 99-107     Published Online: Jul. 17, 2020
DOI: 10.11648/j.ajap.20200904.13        Views 32      Downloads 49
Yang Yang, Nianqi Ye, Tangsheng Wang
Pages: 108-116     Published Online: Jul. 22, 2020
DOI: 10.11648/j.ajap.20200904.14        Views 20      Downloads 18
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