ArchiveVolume 4, Issue 4, December 2019
Ibrahim Yousif Ibrahim Abad Alrhman
Pages: 47-52     Published Online: Jan. 17, 2020
DOI: 10.11648/j.ijssam.20190404.11        Views 332      Downloads 62
Sayed Meshaal El-sayed, Mohamed Reda Abonazel, Mohamed Metwally Seliem
Pages: 53-59     Published Online: Feb. 3, 2020
DOI: 10.11648/j.ijssam.20190404.12        Views 311      Downloads 74
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