Viáfara, J. J. (2013). Comparing L1 With L2 Acquisition: How Learning Factors and Stages Reveal Differences and Similarities Between the Two Processes. Universidad Pedagógica y Tecnológica de Colombia.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিViáfara, John Jairo. Comparing L1 With L2 Acquisition: How Learning Factors and Stages Reveal Differences and Similarities Between the Two Processes. Universidad Pedagógica y Tecnológica de Colombia, 2013.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিViáfara, John Jairo. Comparing L1 With L2 Acquisition: How Learning Factors and Stages Reveal Differences and Similarities Between the Two Processes. Universidad Pedagógica y Tecnológica de Colombia, 2013.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.
