ABDUL TALIB BON; ROSMAINI TASMIN; ALINA SHAMSUDDIN; ETA WAHAB. Pengenalan Kepada Asas Ekonomi. [s.l.] : Penerbit UTHM,2003. Disponível em: https://publisher.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/19. Acesso em: 9 apr. 2026.