Marbun, L. and Herwandi, H. (2021) “Kesantunan Tuturan Interogatif dalam Acara Online Media Gathering Dampak Covid-19 pada Petani Sawit RSPO dI Youtube”, J-LELC: Journal of Language Education, Linguistics, and Culture, 1(1), pp. 79–86. doi: 10.25299/j-lelc.2021.6237.