Yulianti, Yulianti. “Company Value Analysis Using Ratio Models Tobin’s Q at PT Gudang Garam Tbk from 2012 to 2021”. Indonesian Financial Review 3, no. 1 (October 31, 2023): 34–46. Accessed November 30, 2024. http://ypppal-amsi.or.id/penelitian/index.php/IFR/article/view/24.