Peña Ruiz EL, Calero Chévez KM, Ruíz Blandón NR. Positive feedback for the teaching of conjugated, regular and irregular verb forms in 7th grade students, Rigoberto López Pérez Institute, Managua Nicaragua. Rev. Científica Estelí [Internet]. 2023 Apr. 27 [cited 2024 Jul. 18];12(45):58-80. Available from: https://camjol.info/index.php/FAREM/article/view/16038