Castillo Niama, M. P., Célleri Quinde, S. P., Rojas Yumisaca, W. G. and Lara Velarde, A. C. (2019) “Intrinsic motivation in the teaching-learning English process as a Foreign Language”, Ciencia Digital, 3(4.2), pp. 144-159. doi: 10.33262/cienciadigital.v3i4.2.1017.