NGUYEN, Trung Dung; NGUYEN, Dang Binh Thanh; TA, Hong Duc. Study on Theory of Separation Efficiency of Twin-spiral separator in a Grinding – Separation apatite Process. JST: Engineering And Technology For Sustainable Development, [S. l.], v. 32, n. 1, p. 38–42, 2022. DOI: 10.51316/jst.156.etsd.2022.32.1.6. Disponível em: https://jst.vn/index.php/etsd/article/view/275. Acesso em: 27 jun. 2025.