ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
i absolutely love your lectures and understand them well.. im a student of geology/geophysics and wanted to learn more from you ,if you could kindly give me your email for further help
i absolutely love your lectures and understand them well.. im a student of geology/geophysics and wanted to learn more from you ,if you could kindly give me your email for further help