Wulandari, S. P. ., R. . Sahib, and A. P. . Nugroho. “Papuan EFL Students’ Perception in Using Deactivate Read Receipts of WhatsApp During Students and Lecturer’s Communication”. LET: Linguistics, Literature and English Teaching Journal, vol. 15, no. 2, Dec. 2025, pp. 207-31, doi:10.18592/let.v15i2.17710.