Philippines. Bureau of Local Government Development. (1983). Operations manual on SOLID (systems operation for local institutions development). Bureau of Local Government Development.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines. Bureau of Local Government Development. Operations Manual on SOLID (systems Operation for Local Institutions Development). [Quezon City]: Bureau of Local Government Development, 1983.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines. Bureau of Local Government Development. Operations Manual on SOLID (systems Operation for Local Institutions Development). Bureau of Local Government Development, 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.