Sustainable management and utilization of medicinal plant resources : (proceedings of the international conference on medicinal plants, 5-7 December, Kuala Lumpur - Ahmad Said Sajap; Azhar Muda; Faridah Qamaruz-Zaman; Faridah-Hanum; Jalil Md. Som; Mohd. Hamami Sahri; Nor Aini Ab. Shukor (Universiti Putra Malaysia dan Jabatan Perhutanan Malaysia, 2006)