HUYNH, Vu Quang; NGUYEN, Thach Phu; PHAN, Phuong Van. Derivatives, Products, and Pullbacks in Forman’s Combinatorial Differential Forms. Journal of Nepal Mathematical Society, [S. l.], v. 3, n. 1, p. 7–16, 2020. DOI: 10.3126/jnms.v3i1.32997. Disponível em: https://www.nepjol.info/index.php/jnms/article/view/32997. Acesso em: 8 dec. 2025.