University of the Philippines Diliman. Institute for Science and Mathematics Education Development. High School Mathematics Group Writing Team. (2000). Sourcebook on practical work for teacher trainers: High school mathematics I and II, vol. 1. SMEMDP.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)University of the Philippines Diliman. Institute for Science and Mathematics Education Development. High School Mathematics Group Writing Team. Sourcebook on Practical Work for Teacher Trainers: High School Mathematics I and II, Vol. 1. Diliman, Quezon City: SMEMDP, 2000.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)University of the Philippines Diliman. Institute for Science and Mathematics Education Development. High School Mathematics Group Writing Team. Sourcebook on Practical Work for Teacher Trainers: High School Mathematics I and II, Vol. 1. SMEMDP, 2000.