Mazlina, H., A. Halim, and Y. Yusrizal. “Self-Description and Observers Perspective Toward Science Teachers Ability in Using Questioning Technique in Middle School”. Jurnal Penelitian Fisika Dan Aplikasinya (JPFA), vol. 8, no. 2, Dec. 2018, pp. 106-14, doi:10.26740/jpfa.v8n2.p106-114.