Wilar, Sheren H., Benny Pinontoan, and Chriestie E.J.C. Montolalu. “Book Embedding of Infinite Family ((2h+3 2))-Crossing-Critical Graphs for h=1 With Rational Average Degree r∈(3.5,4)”. d’Cartesian 9, no. 2 (January 6, 2021): 145–151. Accessed May 13, 2024. https://ejournal.unsrat.ac.id/v3/index.php/decartesian/article/view/29166.