Aromatic annulation with bisphenylthionium ions

by Manas, Abdul Rahman, Smith, Robin A. J.
Published 1987

Analytical attributes of Humic Acids derived from tropical-based resources

by Balasundram, Siva Kumar, Husin, Aminuddin, Mohd Hanif, Ahmad Husni, Manas, Abdul Rahman
Published 1998

Physico-chemical attributes of humic acid extracted from tropical pect

by Mohd Hanif, Ahmad Husni, Sani Babu, Shanti Devi, Manas, Abdul Rahman, Balasundram, Siva Kumar
Published 1996