ArchiveVolume 4, Issue 2, December 2020
Benard Oula Muok, Ong’ech Dennis Onyango
Pages: 44-53     Published Online: Jun. 8, 2020
DOI: 10.11648/j.stpp.20200402.11        Views 60      Downloads 25
Jingtao Jiang
Pages: 54-59     Published Online: Jun. 15, 2020
DOI: 10.11648/j.stpp.20200402.12        Views 44      Downloads 24
ADDRESS
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
U.S.A.
Tel: (001)347-983-5186