Daniel F, Taneo PNL. Development of Graph Theory Textbooks to Improve Students’ Mathematical Representation Ability in Discrete Mathematics Subjects. Universitas Jambi [Internet]. 2019 Nov. 18 [cited 2026 Apr. 21];9(2):64-70. Available from: https://www.online-journal.unja.ac.id/edumatica/article/view/7635