Mambali, E. (2024). Contribution of Population Service International (PSI) organization projects funded by USAID in socio – economic development. Mzumbe University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mambali, Ester. Contribution of Population Service International (PSI) Organization Projects Funded by USAID in Socio – Economic Development. Mzumbe University, 2024.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Mambali, Ester. Contribution of Population Service International (PSI) Organization Projects Funded by USAID in Socio – Economic Development. Mzumbe University, 2024.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.