o  Dr. Abubakr O.Nur- Associate ftrof of pharmaceutical technology – University of Khartoum E-mail:abubakr100@hotmail.com.

o ftrof. Alamin Ibrahim Alneema- Department of pharmaceutics – Faculty of pharmacy – University of Khartoum Tel: 249(183) 780458.

o  Aldirdiri Khalifa Mohamed – financial maneger – Almashrig College for science and technology – Tel: 0912940820.

o  Hmaza Eltigani Abdalla – Electric Engineer – Alkhorief company – KSA- Tel; 00966508590326- 00966542039213.