Rahayu, R. A. (2010). A Comparative Study On RSBI and Reguler English programs in SMP N 1 Galur Kulon Progo at 7 grade in the academic year of 2009/2010. Yogyakrata : Ahmad Dahlan.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Rahayu, Richa Adiati. A Comparative Study On RSBI and Reguler English Programs in SMP N 1 Galur Kulon Progo at 7 Grade in the Academic Year of 2009/2010. Yogyakrata : Ahmad Dahlan, 2010.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Rahayu, Richa Adiati. A Comparative Study On RSBI and Reguler English Programs in SMP N 1 Galur Kulon Progo at 7 Grade in the Academic Year of 2009/2010. Yogyakrata : Ahmad Dahlan, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.