Fawzah V, . R. STUDENTS’ DIFFICULTIES IN CHANGING ACTIVE VOICE INTO PASSIVE VOICE IN SIMPLE PRESENT TENSE AND SIMPLE PAST TENSE. ELT [Internet]. 30Aug.2018 [cited 6May2024];7(1):32-9. Available from: https://journal.unnes.ac.id/sju/elt/article/view/25302