Mustajib A. THE ABILITY OF STUDENTS OF ENGLISH STUDY PROGRAM 2017/2018 YEAR, ISLAMIC UNIVERSITY OF INDRAGIRI TO DISTINGUISH PRESENT PARTICIPLE FROM GERUND. EJI [Internet]. 2018 Jan. 30 [cited 2024 Nov. 24];2(1):1-11. Available from: https://ejournal-fkip.unisi.ac.id/eji/article/view/227