Demilia, F., and A. . Setyawan. “IMPROVING MATHEMATICS LEARNING OUTCOMES THROUGH THE CONTEXTUAL TEACHING AND LEARNING MODEL ASSISTED WITH CHARACTER CALENDAR”. Maktab: Jurnal Pendidikan Dan Teknologi, vol. 1, no. 2, July 2022, pp. 446-52, http://journal.citradharma.org/index.php/maktab/article/view/514.