Online marketing strategy for Sidikalang Arabica Coffee Farmers by using the online marketplace in Desa Parbuluan VI Dairi. J.Saintech Transf. [Internet]. 2021 Aug. 21 [cited 2026 Feb. 4];4(1):46-54. Available from: https://idjpcr.usu.ac.id/jst/article/view/5097