Orosa, E. P. (1980). Ang patakarang edukasyong bilinggwal at ang implementasyon nito [microform].
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিOrosa, Eden Punzalan. Ang Patakarang Edukasyong Bilinggwal at Ang Implementasyon Nito [microform]. Quezon City :Photoduplication Service. University of the Philippines Library, 1980.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিOrosa, Eden Punzalan. Ang Patakarang Edukasyong Bilinggwal at Ang Implementasyon Nito [microform]. 1980.
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