(1980). The Development and expansion of classroom facilities for primary education in Indonesia. Office of Educational and Cultural Research and Development (BP3K), Ministry of Education and Culture.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)The Development and Expansion of Classroom Facilities for Primary Education in Indonesia. Jakarta: Office of Educational and Cultural Research and Development (BP3K), Ministry of Education and Culture, 1980.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)The Development and Expansion of Classroom Facilities for Primary Education in Indonesia. Office of Educational and Cultural Research and Development (BP3K), Ministry of Education and Culture, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.