Walmadri, W., Hasnah, H. and Tanjung, F. (2019) “The Impact of Farmer Field Schools (SLK) Program Implementation on the Cocoa Farm Business in Lima Puluh Kota Regency”, International Journal of Environment, Agriculture and Biotechnology, 4(1). Available at: https://journal-repository.com/index.php/ijeab/article/view/701 (Accessed: 22 July 2024).