Taubah, R., I. Isnarto, and R. Rochmad. “Student Critical Thinking Viewed from Mathematical Self-Efficacy in Means Ends Analysis Learning With the Realistic Mathematics Education Approach”. Unnes Journal of Mathematics Education Research, Vol. 7, no. 1, Sept. 2018, pp. 189-95, http://journal.unnes.ac.id/sju/ujmer/article/view/25562.