Darwan, Darwan, and Hindayati Mustafidah. “Use of Wavelets in Electrocardiogram Research: A Literature Review”. JUITA: Jurnal Informatika 9, no. 1 (May 22, 2021): 49–56. Accessed June 21, 2025. http://jurnalnasional.ump.ac.id/index.php/JUITA/article/view/10202.