kawther alshereif. "The effectiveness of a proposed program to develop some aspects of science teaching and teaching skills for third year students: sciences (nature, chemistry, and natural history) at the College of Education in Sohag", المجلة التربوية لکلية التربية بسوهاج, 11, 11, 1996, 211-252. doi: 10.21608/edusohag.1996.130656