Paxman, D. L. F. (1987). The effects of three types of homework feedback on the achievement, attitude and homework practices of seventh grade science students. Delta State University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Paxman, Diane Leah Ferland. The Effects of Three Types of Homework Feedback on the Achievement, Attitude and Homework Practices of Seventh Grade Science Students. Cleveland: Delta State University, 1987.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Paxman, Diane Leah Ferland. The Effects of Three Types of Homework Feedback on the Achievement, Attitude and Homework Practices of Seventh Grade Science Students. Delta State University, 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.