APRILIYANI, P.; HIDAYATI, S. APPROPRIATENESS OF POCKETBOOK (HANDOUT) USING BARCODE THEMED ENVIRONMENTAL POLLUTION TO TRAIN THE DIGITAL LITERATION OF VII JUNIOR HIGH SCHOOL. PENSA: E-JURNAL PENDIDIKAN SAINS, v. 8, n. 3, p. 204-208, 31 dez. 2020.