Rodríguez Medina, E. R., & Salvador Orozco González (Tutor). (2014). Factors that affect student's learning of the verb to be in eighth grade, classroom "A "at César Augusto Salinas Pinell High School, during the first semester of 2014 / Edelma Rodríguez Medina; Derling Lorena Ruíz (1a ed.). Nicaragua: URACCAN.

Rodríguez Medina, Edelma; Ruíz, and Salvador Orozco González (Tutor). Factors That Affect Student's Learning of the Verb to Be in Eighth Grade, Classroom "A "at César Augusto Salinas Pinell High School, During the First Semester of 2014 / Edelma Rodríguez Medina; Derling Lorena Ruíz. 1a ed. Nicaragua: URACCAN, 2014.

Rodríguez Medina, Edelma; Ruíz, and Salvador Orozco González (Tutor). Factors That Affect Student's Learning of the Verb to Be in Eighth Grade, Classroom "A "at César Augusto Salinas Pinell High School, During the First Semester of 2014 / Edelma Rodríguez Medina; Derling Lorena Ruíz. 1a ed. Nicaragua: URACCAN, 2014.