S. Diah Pamelasari, M. Md Yunus, F. Fibriana, and A. Vita Amalia, “Developing Workbook Science plus English to Improve Students’ Mastery of Science Content in English”, IJET, vol. 7, no. 2.29, pp. 570–573, May 2018, doi: 10.14419/ijet.v7i2.29.13820.