Sa’diyah, Halimatus, and Tyasha Ayu Melynda Sari. “Characteristic Board Of Directors And Investment Opportunity Set On Firm Value”. SUSTAINABLE 1, no. 2 (December 1, 2021): 205–221. Accessed October 1, 2026. https://journal.um-surabaya.ac.id/sustainable/article/view/10709.