“Politeness Strategies in WhatsApp Text Messaging: A Case Study of Lecturers’ Politeness in Sending Text Messages to Students in Universitas ‘Aisyiyah Yogyakarta”. International Journal of Social Science Research and Review, vol. 6, no. 7, July 2023, pp. 137-51, https://doi.org/10.47814/ijssrr.v6i7.1323.