Kholis, A. “THE USE OF WHATSAPP APP IN DISTANCE LANGUAGE LEARNING IN PANDEMIC COVID-19: A CASE STUDY IN NAHDLATUL ULAMA UNIVERSITY OF YOGYAKARTA”. LET: Linguistics, Literature and English Teaching Journal, vol. 10, no. 2, Dec. 2020, pp. 24-43, doi:10.18592/let.v10i2.4051.