Dupitas, C. L. (1989). Selected factors influencing the academic performance of the secondary students at the Sta. Ignacia South District school year, 1987-1988.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Dupitas, Clara Lucero. Selected Factors Influencing the Academic Performance of the Secondary Students at the Sta. Ignacia South District School Year, 1987-1988. 1989.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Dupitas, Clara Lucero. Selected Factors Influencing the Academic Performance of the Secondary Students at the Sta. Ignacia South District School Year, 1987-1988. 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.