MOHAMAD ASROL AR PIDI; , ISHAK SAAT. KEPIMPINAN TUN ABDUL RAZAK ERA 1969-1970. [s.l.] : Penerbit UTHM,2018. Disponível em: https://monograph.uthm.edu.my/index.php/penerbituthm/catalog/book/201. Acesso em: 26 aug. 2026.