In this series, we pay homage to the remarkable Malaysian scholars who during their lifetime have made huge contribution in various fields for the benefit of Malaysians. They are the late Prof. Diraja Ungku Abdul Aziz (30sen), the late Prof. Emeritus Tan Sri Dato' Dr. Mohd Rashdan bin Hj. Baba (RM1.00) and the late Prof. Emeritus Tan Sri Dato’ Dr. Khoo Kay Kim (RM1.30).