YADAV, R.; CHAKRABARTI, S.; JHA, I.; YADAV, U. Finite partially ordered set and some of its properties. BIBECHANA, [S. l.], v. 13, p. 132–136, 2015. DOI: 10.3126/bibechana.v13i0.13985. Disponível em: https://nepjol.info/index.php/BIBECHANA/article/view/13985. Acesso em: 18 jul. 2024.