Sutja, A., R. Hendra, R. Dezaneru, M. Muspawi, and Y. Yantoro. “IMPROVING LIBRARY CUSTOMER SATISFACTION THROUGH THE IMPLEMENTATION OF THE SMILE AND GREET CAMPAIGN”. Dinasti International Journal of Education Management And Social Science, vol. 2, no. 4, Apr. 2021, pp. 708-16, doi:10.31933/dijemss.v2i4.759.