Đặng Hoàng Vũ, Nguyễn Nhựt Phi Long and Dương Minh Hùng 2021. Design and experiment the tooth shape to split the coconut’s skin and fibrous husk. Journal of Technical Education Science. 16, 2 (Apr. 2021), 65–70. DOI:https://doi.org/10.54644/jte.63.2021.67.