Proceedings of the Seminar on Medicinal and Aromatic Plants: Towards Bridging Science and Herbal Industry: Kuala Lumpur (Malaysia), 12-13 Sep 2000, p. 9
Towards Modernisation of Research and Technology in Herbal Industries : Proceedings of the Seminar on Medicinal and Aromatic Plants: Kuala Lumpur (Malaysia), 24-25 Jul 2001, p. 200-203