Dewi Kusumayati, L. . (2022). EVALUATING ENGLISH TEXTBOOK CURRENTLY IN USE AT “ENGLISH BITES” (ENGLISH EXTRACURRICULAR PROGRAM EXISTED IN CIVIL AVIATION POLYTECHNIC OF SURABAYA). Jurnal Penelitian, 6(4), 247–255. https://doi.org/10.46491/jp.v6i4.814