FELIX. Karatsuba Multiplication Algorithm Optimization by Using Nikhilam II Method. Jurnal Nasional Teknik Elektro dan Teknologi Informasi, [S. l.], v. 9, n. 2, p. 132–137, 2020. DOI: 10.22146/jnteti.v9i2.148. Disponível em: https://jurnal.ugm.ac.id/v3/JNTETI/article/view/148. Acesso em: 16 sep. 2026.