P. MATHIYALAGAN & R. NAGARAJAN. SINGLE -VALUED PYTHAGOREAN FUZZY NET PRESENT WORTH ECONOMIC ANALYSIS UNDERCAPITAL BUDGETING TECHNIQUES. African Diaspora Journal of Mathematics ISSN: 1539-854X, Multidisciplinary UGC CARE GROUP I, [S. l.], v. 27, n. 3, p. 67–76, 2024. Disponível em: https://newjournalzone.in/index.php/ijmfsmr/article/view/255. Acesso em: 15 oct. 2024.