NII-OKAI, David; ACHEAMPONG, Ebenezer; MAHAMA, Inuusah; MENSAH, Jonathan Kwame; IMORO, Osman; MARFO, Richard; KWAW, Regine; ODAME-MENSAH, Seth. Sandwich Model of Educational Upgrading in Ghana: A Transitional Challenge in Disguise. European Scientific Journal, ESJ, [S. l.], v. 17, n. 8, p. 136, 2021. DOI: 10.19044/esj.2021.v17n8p136. Disponível em: https://test.eujournal.org/index.php/esj/article/view/14147. Acesso em: 30 apr. 2025.