Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
3 ta ish
Egyptian Petroleum Research Institute
Ahmed A. Farag
N.S. Abdelshafi, Ahmed A. Farag, F. El‐Taib Heakal +4
Emad S. Bishay, Ahmed H. Elged, Ahmed A. Farag +2