Al-Ruwashid, M. S. A. (1984). The Effects of A Lecture only and lecture Laboratory Approach on Riyadh Junior College Saudi Arabia Chemistry Student Achievment and Attitudes. University of Northern Colorado, College of Arts and Science Department of Scienc Education.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Ruwashid, Mohamed Suliman Abdulrahman. The Effects of A Lecture Only and Lecture Laboratory Approach on Riyadh Junior College Saudi Arabia Chemistry Student Achievment and Attitudes. Colorado: University of Northern Colorado, College of Arts and Science Department of Scienc Education, 1984.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Ruwashid, Mohamed Suliman Abdulrahman. The Effects of A Lecture Only and Lecture Laboratory Approach on Riyadh Junior College Saudi Arabia Chemistry Student Achievment and Attitudes. University of Northern Colorado, College of Arts and Science Department of Scienc Education, 1984.