Kurnia, G., H. Johanes, D. Hidayat, A. Rozha, M. Zahvira, and I. Sukarno. “Improving Airport On-Time Performance Using Kepner-Tregoe Problem-Solving Approaches”. JURNAL TEKNOLOGIA, Vol. 3, no. 1, Oct. 2020, https://aperti.e-journal.id/teknologia/article/view/58.