J. B. Darnal, P. Doung-ngern, L. Z. Wangchuk, M. S. Gurung, and W. Swaddiwudhipong, “Assessment of HIV risk behaviors, practices and knowledge among people living with HIV in Bhutan, 2011”, Bhutan Health Journal, vol. 1, no. 1, pp. 1–10, Nov. 2015.