NADIATULHUDA ZULKIFLI; NOR HAFIZAH NGAJIKIN. An Undergraduate Guide to Analog and Digital Communication Principles. [s.l.] : Penerbit UTHM,2025. Disponível em: https://penerbit.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/538. Acesso em: 9 apr. 2026.