NADIATULHUDA ZULKIFLI; NOR HAFIZAH NGAJIKIN. An Undergraduate Guide to Analog and Digital Communication Principles. [s.l.] : Penerbit UTHM,2025. Disponível em: https://publisher.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/538. Acesso em: 12 mar. 2026.