Urwatin Wusqo, Indah, et al. “ICT Competency Analysis of Pre-Service Science Teacher in the Teaching Kit Using Web-Based E-Portfolios Blog on Science Instruction in English Courses”. International Journal of Engineering & Technology, vol. 7, no. 2.29, May 2018, pp. 581-5, https://doi.org/10.14419/ijet.v7i2.29.13822.