≤2000

Boonratana, R. and X.C. Le. 1994. Conservation of Tonkin Snub-nosed Monkeys (Rhinopithecus avunculus) in Vietnam. Oral presentation at the 15^th Congress of the International Primatological Society held in Bali, Indonesia, 3-8 August 1994.

Boonratana, R. and X.C. Le. 1994. Preliminary Observations on the Ecology and Behaviour of the Tonkin Snub-nosed Monkey (Rhinopithecus avunculus) in Northern Vietnam. Oral presentation at the 15^th Congress of the International Primatological Society held in Bali, Indonesia, 3-8 August 1994.

Boonratana, R. and D.S. Sharma. 1992. Conservation of Proboscis Monkeys in the Lower Kinabatangan, Sabah. Oral presentation at the 14^th Congress of the International Primatological Society held in Strasbourg, France, 16-21 August 1992

Boonratana, R. and C.J. Edwin. 1986. The Development of Mating Relationships in a Small Group of Macaca mulatta. Oral presentation at the 11^th Congress of the International Primatological Society held in Goettingen, Germany, 20-25 July 1986.