Papa, P. C., & Engay, B. Q. (2017). A phenomenological study on heads of youth leadership organizations. University of the Philippines Diliman Extension Program in Pampanga.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Papa, Patricia C., و Bryan Q. Engay. A Phenomenological Study on Heads of Youth Leadership Organizations. Pampanga: University of the Philippines Diliman Extension Program in Pampanga, 2017.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Papa, Patricia C., و Bryan Q. Engay. A Phenomenological Study on Heads of Youth Leadership Organizations. University of the Philippines Diliman Extension Program in Pampanga, 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.