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Ritonga และผู้แต่งคนอื่นๆ. 1989. Vascularization of tree shrew's olfactory bulb as revealed by plastic corrosion cast technique and viewed under SEMMuchtar Ritonga. Faculty of Graduate Studies, Mahidol University;
Ritonga และผู้แต่งคนอื่นๆ. (1989) Vascularization of tree shrew's olfactory bulb as revealed by plastic corrosion cast technique and viewed under SEMMuchtar Ritonga . Mahidol University/Bangkok.
Ritonga และผู้แต่งคนอื่นๆ. Vascularization of tree shrew's olfactory bulb as revealed by plastic corrosion cast technique and viewed under SEMMuchtar Ritonga. . Bangkok:Mahidol University, 1989.
Ritonga และผู้แต่งคนอื่นๆ. (1989) Vascularization of tree shrew's olfactory bulb as revealed by plastic corrosion cast technique and viewed under SEMMuchtar Ritonga . Mahidol University/Bangkok.