Saragih, Y., R. Satrio Hadikusuma, and A. Elisabet S. “Evaluation of Cellular Network Performance Involving the LTE 1800 Band and LTE 2100 Band Using the Drive Test Method”. JURNAL INFOTEL, Vol. 14, no. 4, Nov. 2022, pp. 294-00, doi:10.20895/infotel.v14i4.833.