W.H. den Hertog et K.F. Wiersum, « Timur (Zanthoxylum armatum) Production in Nepal: Dynamics in Nontimber Forest Resource Management », Mountain Research and Development, vol. 20, no 2 May, , p. 136–145 (DOI10.1659/0276-4741(2000)020[0136:TZAPIN]2.0.CO;2))