WIJAYA, J.; HARTONO, P. G.; SETIAWATI, J.; WIJAYA, J.; SUTANTO, R. S.; CHENDRY, E. J. W. The profitability of Indonesian infrastructure companies amid COVID-19: Quantile regression for stability testing. Jurnal Ekonomi & Studi Pembangunan, [S. l.], v. 26, n. 1, p. 135–156, 2024. DOI: 10.18196/jesp.v26i1.24971. Disponível em: https://journal.umy.ac.id/index.php/esp/article/view/24971. Acesso em: 3 sep. 2025.