Research Professor
1 January 1992 - 31 December 1992
Professor of Chemistry
1 February 1960 - 31 December 1991
Chairman and Head of Department of Chemistry
1960 to 1991
Professor of Economics
1 January 1967 to 31 December 1990
Professorial Associate of Faculty of Law
3 January 1984 to 31 December 1990
Conferred 31 December 2000