Rivai , M. ., Yusri , Y., Rivai , A. T. O. and Anwar , M. . (2021) “Teachers’ language politeness, students’ academic motivation and self-efficacy during school from home”, Cypriot Journal of Educational Sciences, 16(5), pp. 2161–2172. doi: 10.18844/cjes.v16i5.6236.