The socio-physical environmental evaluation of Qat and the perception - Al-Absi, Mohammad Esmail (2010)
Tesis (Doktor Falsafah) - Universiti Kebangsaan Malaysia, 2010.
References : page [239]-264.
Keywords: Universiti Kebangsaan Malaysia -- Dissertations; Dissertations, Academic -- Malaysia; Khat -- Social aspects -- Yemen (Republic)