Zakari, O. M. M., & Doger Kaufman. (1982). A comparison between the effects of specific behavioral objectives versus study questions on learning of undergraduate Saudi Arabian biology students. Florida State University,College of Education.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Zakari, Omar Muhammad Madani, و Doger Kaufman. A Comparison Between the Effects of Specific Behavioral Objectives Versus Study Questions on Learning of Undergraduate Saudi Arabian Biology Students. Florida: Florida State University,College of Education, 1982.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Zakari, Omar Muhammad Madani, و Doger Kaufman. A Comparison Between the Effects of Specific Behavioral Objectives Versus Study Questions on Learning of Undergraduate Saudi Arabian Biology Students. Florida State University,College of Education, 1982.