Nathasya, E., N. Putri, and Y. Restianto. “The Effect of Profitability, Company Size, Solvency, and Public Accounting Firm Size to Audit Delay on Mining Companies”. VALID Jurnal Ilmiah, Vol. 18, no. 1, Feb. 2021, pp. 19-30, http://journal.stieamm.ac.id/index.php/valid/article/view/143.