Agbisit, C. F. (1977). Teaching equations and inequalities in high school algebra using two strategies: An experimental study [microform]. Photoduplication Service, University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Agbisit, Clarita F. Teaching Equations and Inequalities in High School Algebra Using Two Strategies: An Experimental Study [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Agbisit, Clarita F. Teaching Equations and Inequalities in High School Algebra Using Two Strategies: An Experimental Study [microform]. Photoduplication Service, University of the Philippines Library, 1977.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.