Somba, Y., Liando, N. . and Kumayas, T. (2022) “A STUDY ON TYPES OF VOCABULARY TASKS IN EFL TEXTBOOK ENGLISH ON THE SKY 1”, JoTELL : Journal of Teaching English, Linguistics, and Literature, 1(4), pp. 528-549. doi: 10.36582/jotell.v1i4.3904.