Nijman, Vincent, Hanging in the balance : an assessment of trade in orang-utans and gibbons in Kalimantan, Indonesia / Vincent Nijman. - 44 pages : illustrations ; 29 cm. - A Traffic Southeast Asia report . - A Traffic Southeast Asia report . References : page 41-44. ISBN: 9833393039 Hadiah Subjects--Topical Terms: Wild animal trade--Indonesia.Orangutan--Indonesia.Trade regulation--Indonesia.Gibbons--Indonesia.