Qin , Xiaoshun, and Victor Mmbengwa. “Development of an Agricultural Mechanization Model Based on After-Sales Service in Southern Africa”. Development of an Agricultural Mechanization Model Based on After-sales Service in Southern Africa (June 30, 2023): 1–261. Accessed August 18, 2026. https://stm.bookpi.org/DAMMASSA/article/view/11056.