Space Global Positioning System (GPS) Constellation
www.4shared.com/file/224410544/8f4203a8/Space_Global_Positioning_Syste.html
الجزء الثالث www.4shared.com/file/224409807/3a97627f/diplome_3.html
الجزء الرابع www.4shared.com/file/224409749/b21fcd41/diplome_4.html
الجزء الخامس www.4shared.com/file/224409804/a39e33c5/diplome_5.html
الجزء السادس www.4shared.com/file/224410507/72279716/diplome_6.html