Santoso, P. B., & Darwanto, D. (2015). Strategy for Strengthening Farmer Groups by Institutional Strengthening. Muhammadiyah University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Santoso, Purbayu Budi, و Darwanto Darwanto. Strategy for Strengthening Farmer Groups by Institutional Strengthening. Muhammadiyah University Press, 2015.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Santoso, Purbayu Budi, و Darwanto Darwanto. Strategy for Strengthening Farmer Groups by Institutional Strengthening. Muhammadiyah University Press, 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.