Caparas, M. V. G., & Agravante, J. A. (1985). A Study on the presence of public speaking apprehension among speech I students in U.P. and its relationship to selected variables. College of Arts and Letters, University of the Philippines Diliman.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Caparas, Maria Veronica G., و Josefina A. Agravante. A Study on the Presence of Public Speaking Apprehension Among Speech I Students in U.P. and Its Relationship to Selected Variables. Quezon City: College of Arts and Letters, University of the Philippines Diliman, 1985.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Caparas, Maria Veronica G., و Josefina A. Agravante. A Study on the Presence of Public Speaking Apprehension Among Speech I Students in U.P. and Its Relationship to Selected Variables. College of Arts and Letters, University of the Philippines Diliman, 1985.