Sudibyo, E., A. F. Naini, and W. B. Sabtiawan. “THE EFFECTIVENESS OF STUDENT WORKSHEET TO TRAIN SCIENCE PROCESS SKILLS”. JPPIPA (Jurnal Penelitian Pendidikan IPA), vol. 4, no. 2, Dec. 2019, pp. 70-74, doi:10.26740/jppipa.v4n2.p70-74.