Tasyriqalano, Frauline, et al. “Pengaruh Struktur Modal Terhadap Profitabilitas Perusahaan PT. Mayora Selama Pandemi Covid-19”. Prosiding Seminar Nasional Manajemen, vol. 2, no. 2, Aug. 2023, pp. 335-41, https://openjournal.unpam.ac.id/index.php/PSM/article/view/45373.