ERMITANIO, Alvin; GALVAN, John Paul. Design, Fabrication, and Performance Evaluation of a Weeder for Upland Rice Production. Journal of Pure and Applied Sciences, [S. l.], v. 1, n. 2, p. 10, 2023. Disponível em: https://csu.org.ph/jpas/article/view/31. Acesso em: 4 feb. 2026.