APA (7 वां संस्करण) प्रशस्ति पत्र

Cárdenas, M. B. (2014). Exploring Four Teachers’ Perceptions in Relation to the Concept of Bilingualism at the Maria Auxiliadora School- Sogamoso, Boyacá-Colombia. Universidad Pedagógica y Tecnológica de Colombia.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Cárdenas, Mauricio Barrera. Exploring Four Teachers’ Perceptions in Relation to the Concept of Bilingualism at the Maria Auxiliadora School- Sogamoso, Boyacá-Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2014.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Cárdenas, Mauricio Barrera. Exploring Four Teachers’ Perceptions in Relation to the Concept of Bilingualism at the Maria Auxiliadora School- Sogamoso, Boyacá-Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2014.

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