Phillips, J. A. (1986). Efficacy of explicit, implicit and schema type questions on the retention of social studies prose material among Malaysian students of different ability levels. Indiana University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Phillips, John Arul. Efficacy of Explicit, Implicit and Schema Type Questions on the Retention of Social Studies Prose Material Among Malaysian Students of Different Ability Levels. Indiana: Indiana University, 1986.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Phillips, John Arul. Efficacy of Explicit, Implicit and Schema Type Questions on the Retention of Social Studies Prose Material Among Malaysian Students of Different Ability Levels. Indiana University, 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.