Sangur Y. Pengaruh Corporate Social Responsibility (CSR), Indonesian Sustainable Palm Oil System (ISPO), Dan Return On Investment (ROI) Terhadap Harga Saham Perusahaan Pada Sektor Perkebunan yang Terdaftar di BEI Periode 2014 – 2018. jak [Internet]. 5Dec.2020 [cited 8May2024];6(2):18-. Available from: https://ojs3.unpatti.ac.id/index.php/jak/article/view/2741