PIERRE OLELA NGONGO; JEAN MARIE KAPENGA KAZADI NTUNDULA; BIENVENUE ANAYEL NOWA; LUCIEN MUNSA ME TILA; KIPOPO FAUSTIN. Analysis of the effects of teaching units on the underqualification of mathematics teachers in secondary schools in the masina I pool. International Journal of Scientific Research and Innovative Studies, [S. l.], v. 5, n. 1, p. 31–42, 2026. DOI: 10.63883/ijsrisjournal.v5i1.564. Disponível em: https://www.ijsrisjournal.com/index.php/ojsfiles/article/view/564. Acesso em: 18 apr. 2026.