AMBARITA, E.; SUPRAYETNO, E.; MARIANA NKEA , A. A. .; KYEI, E. . Morphophonemic Allomorphy of the Prefix Um- In Toba Batak: An Extended Generative Morphology Analysis. Journal of Applied Linguistics , [S. l.], v. 6, n. 1, p. 57–74, 2026. DOI: 10.52622/joal.v6i1.694. Disponível em: https://journal.eltaorganization.org/index.php/joal/article/view/694. Acesso em: 10 jul. 2026.