Number 8

Authors: Ibrahim Adeyanju

Authors: A. Alajmi , E. M. Saad , R. R. Darwish

Authors: Tahar Dilekh , Ali Behloul

Authors: El Sayed Abdel Wahed , Ibrahim Al Emam , Amr Badr

Authors: Adrijan Božinovski , Nevena Ackovska

Authors: J. B. Seventline , G. V. K. Sharma , K. Sridevi , D. Elizabath Rani , K. Raja Rajeswari

Authors: Youssef Zaitar , Mohamed Ouzarf

Authors: Akbar Banitalebi , Mohd Ismail Abd Aziz , Rohanin Ahmad

Authors: S. R. Chaudhari , D. D. Komejwar