Erna Apriliani, and Bandung Arry Sanjoyo. “EDUKSI ANK ADA ATRIKS-ATRIKS ERTENTU”. imits: ournal of athematics and ts pplications, vol. 4, no. 2, Nov. 2007, p. 1, https://journal.its.ac.id/index.php/limits/article/view/5399.