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Ahmed N. Al-Hakimi (Department of Chemistry, College of Science, Ibb University, P. O. Box 70270, Ibb, Yemen, Department of Chemistry, College of Science, Ibb University, P. O. Box 70270, Ibb, Yemen), Department of Chemistry, College of Science, Qassim University, Buraidh, Saudi Arabia), Ibrahim A. Alhagri (Department of Chemistry, College of Science, Ibb University, P. O. Box 70270, Ibb, Yemen, Nabil A. Alhemiary (Department of Chemistry, College of Science and Arts-Sharourah, Najran University, Sharourah, Saudi Arabia, Sadeq M. Al Hazmy
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