Dimabuyu, M. P. Y. (2001). Effects of cooperative learning on mathematics problem solving ability and attitudes of high school freshmen.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Dimabuyu, Ma. Portia Y. Effects of Cooperative Learning on Mathematics Problem Solving Ability and Attitudes of High School Freshmen. 2001.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Dimabuyu, Ma. Portia Y. Effects of Cooperative Learning on Mathematics Problem Solving Ability and Attitudes of High School Freshmen. 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.