Lighid, E. H. (2007). The journey towards sustainability: NGO stories from the Philippines. International Council on Management of Population Programmes (ICOMP).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lighid, Elmer Herradura. The Journey Towards Sustainability: NGO Stories from the Philippines. Malaysia: International Council on Management of Population Programmes (ICOMP), 2007.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Lighid, Elmer Herradura. The Journey Towards Sustainability: NGO Stories from the Philippines. International Council on Management of Population Programmes (ICOMP), 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.