Ekaputra, V. D., and Maya Sari. “STUDY OF THE VALUE OF AIRPORT MANAGEMENT COMPANIES IN THE PANDEMIC PERIOD WITH THE OPTIMAL CAPITAL STRUCTURE APPROACH”. Jurnal Ekonomi, vol. 11, no. 03, Dec. 2022, pp. 1869-83, https://ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/1040.