Selenocentric geodetic reference system / Frederick J. Doyle, Atef A. Elassal, and James R. Lucas.Frederick J. Doyle1977
Unofficial Red Hat Certified System Administrator RHCSA 8 & 9 (EX200) Exam Preparation 2023Ghada Atef2022EPUB433 KBEN
Ground-water geology of selected wetlands in Union and Alexander Counties, Illinois / E. Donald McKay, Atef Elzeftawy, Keros Cartwright. Environmental Geology Notes, Volume 85E. Donald. McKay1979EN
Hydrology and water resources overview for the Nevada Nuclear Waste Storage Investigations, Nevada Test Site, Nye County, NevadaRichard H. French1984EN
Undisturbed Core Method for Determining and Evaluating the Hydraulic Conductivity of Unsaturated SedimentsAtef. Elzeftawy1983EN
عندما تتحكم المعتقدات الخاطئه بالبشر وتسيطر على تفكيرهم وتجعلهم يقسوا على احب من لديهم يكون بهذا المجتمع اكثر من فتاه تدعى فatefPDF740 KBAR