1. Taiz University , Faculty of Medical and Health Sciences, Laboratories department , Taiz , Yemen
2. Taiz University , Faculty of Art, Geography Department , Taiz , Yemen
3. R and D, Chemistry, VerdeEn Chemicals Pvt. Ltd , D-11, UPSIDC Industrial Area, Masoorie-Gulawati Road, Hapur District, Uttar Pradesh , India -201015, Tel.: +90 (542) 3032275