MOHD ARIF AGAM; ROBIJAH KAMARUL ZAMAN. GENIUS MENGGAPAI PhD. [s.l.] : Penerbit UTHM,2015. Disponível em: https://penerbit.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/168. Acesso em: 9 apr. 2026.