UGWU, Ikenna Christopher; UGWU, Kelechi Enyina. Green supplier selection and flexible sourcing: An empirical study of Nigeria tertiary institution. Journal of Commerce, Management, and Tourism Studies, Indonesia, v. 5, n. 2, p. 278–290, 2026. DOI: 10.58881/jcmts.v5i2.492. Disponível em: https://ympn.co.id/index.php/JCMTS/article/view/492. Acesso em: 21 aug. 2026.