Panopio, R. G. (1999). Personalized system of instruction (PSI) for college algebra. Learning Resource Center, University of the Philippines.
Chicago Style (17th ed.) CitationPanopio, Rolando G. Personalized System of Instruction (PSI) for College Algebra. Diliman, Quezon City: Learning Resource Center, University of the Philippines, 1999.
ציטוט MLAPanopio, Rolando G. Personalized System of Instruction (PSI) for College Algebra. Learning Resource Center, University of the Philippines, 1999.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.