Improving marketing skills for salak processed products through training and mentoring for Jaya Lestari Farmers Group in Tiga Nderket Village, Karo Regency. Community Empower [Internet]. 2024 Nov. 19 [cited 2026 Oct. 17];9(11):1692-8. Available from: https://journal.unimma.ac.id/ce/article/view/12537