“…Two articles for students of junior high school (Maskhuliyah & Bungkang, 2017;Lepiyanto, 2011), 13 articles for senior high school (Sujanem, 2012;Sufinah et al, 2013;Landriany, 2014;Susilo et al, 2014;Tampubolon et al, 2015); and 50 articles for university students (Zuchdi et al, 2010;Parmin & Peniati, 2012;;Tannir & Al Hroub, 2013;Al Azri. & Al Rashidi, 2014;;Celik, 2014;Novian et al, 2014;Khaimar, 2015;Satriawan & Rosmiati, 2016); Fadilah et al, 2016;Nisrina et al, 2016;Komang et al, 2017;Maskhuliyah et al, 2017;Nihayah et al, 2018) as shown in Figure 4. The literature selected is mostly articles for students, so that the findings obtained are wider in scope than the findings for junior and senior high school students.…”