Noor, As Martadani, et al. “Institution Relation of Corporate Social Responsibility (CSR) Coal Mining Company in Empowerment of Horticulture Farmers”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 45, no. 1, Mar. 2019, pp. 35-42, https://gssrr.org/JournalOfBasicAndApplied/article/view/9741.