Becerra Peña, S., Martínez Quiroga, L. O., & Bolívar Suárez, A. (2019). The orthography from grandfather anecdotal stories. Universidad Pedagógica y Tecnológica de Colombia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBecerra Peña, Samuel, Luis Orlando Martínez Quiroga, और Alejandro Bolívar Suárez. The Orthography from Grandfather Anecdotal Stories. Universidad Pedagógica y Tecnológica de Colombia, 2019.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBecerra Peña, Samuel, et al. The Orthography from Grandfather Anecdotal Stories. Universidad Pedagógica y Tecnológica de Colombia, 2019.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.
