Villanueva, R., & Soluta, R. (2012). Paano lilikha ang K-12 program ng kabataang contractual? DZUP.
Παραπομπή σε μορφή Chicago (17η εκδ.)Villanueva, Raymund, και Roger Soluta. Paano Lilikha Ang K-12 Program Ng Kabataang Contractual? Quezon City: DZUP, 2012.
Παραπομπή σε μορφή MLA (9th εκδ.)Villanueva, Raymund, και Roger Soluta. Paano Lilikha Ang K-12 Program Ng Kabataang Contractual? DZUP, 2012.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.