Nacional, S. T. I., & Dizon, L. B. (1998). The perceptions of Bachelor of Library and Information Science Students of the University of the Philippines Diliman on the Master of Library and Information Science Program.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nacional, Sotero T. III, و Leticia B. Dizon. The Perceptions of Bachelor of Library and Information Science Students of the University of the Philippines Diliman on the Master of Library and Information Science Program. Quezon City : Institute of Library Science, University of the Philippines Diliman, 1998.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Nacional, Sotero T. III, و Leticia B. Dizon. The Perceptions of Bachelor of Library and Information Science Students of the University of the Philippines Diliman on the Master of Library and Information Science Program. 1998.