Central Metallurgical Research and Development Institute;
87 Helwan;
Cairo;
Egypt;
Central Metallurgical Research and Development Institute;
87 Helwan;
Cairo;
Egypt;
Central Metallurgical Research and Development Institute;
87 Helwan;
Cairo;
Egypt;
Central Metallurgical Research and Development Institute;
87 Helwan;
Cairo;
Egypt;
Geology Dept. Faculty of Science;
Ain Shams University;
Abbasia;
Cairo;
Egypt;