Boonratana, R. 1995. Proboscis monkeys [in Japanese]. GEO. 1995(6): 108-115.

Le, X.C., H.H. Dang, M.K. Hoang and R. Boonratana. 1994. Nghien cuu va, phuc hoi va phat trien lau ben gen dong vat qui hiem o rung Na Hang, Tuyen Quang. [in Vietnamese].

Boonratana, R. and D.S. Sharma. 1994. Conservation of Proboscis Monkeys in the Lower Kinabatangan, Sabah. In Thierry, B., J.R. Anderson, J.J. Roeder and N. Herrenschmidt (Eds.). Current Primatology, Vol. I: Ecology and Evolution. Pp. 93-100.

Boonratana, R. and X.C. Le. 1994. A report on the ecology, status and conservation of the Tonkin snubnosed monkey (Rhinopithecus avunculus) in northern Vietnam. New York/Ha Noi: WCS/IEBR.

Boonratana, R. 1994. The ecology and behaviour of the proboscis monkey (Nasalis larvatus) in the Lower Kinabatangan, Sabah. Asian Primates. Vol. 4(1): 13- 14.

Boonratana, R. 1993c. El Pinocho de la Selva. GEO. 1993(81): 40-50.

Boonratana, R. 1993b. Die Pinnochios des Regenwalds – Nasenaffen. GEO. 1993(3): 132-142.

Boonratana, R. 1993a. The ecology and behaviour of the proboscis monkey (Nasalis larvatus) in the Lower Kinabatangan, Sabah. Unpublished doctoral dissertation, Mahidol University.

Boonratana, R. 1988c. Additional report on trade of Varanus spp. in Thailand. Supplementary report to CITES.

Boonratana, R. 1988b. Distributional survey and trade of Varanus species in Thailand. Consultancy report to CITES.

Boonratana, R. 1988a. Survey of Mammals in South Thailand Parks. Natural History Bulletin of the Siam Society. 36: 71-84.

Boonratana, R. and C.J. Edwin. 1986. The Development of Mating Relationships in a Small Group of Macaca mulatta. Primate Report. 15: 21-29.Boonratana, R. 1986. Social Behaviour of a newly formed group of Macaca mulatta at Chandigarh, with a review on Rhesus in India. Unpublished Master’s dissertation, Panjab University.