Or Vathanak. 1999. Unsafe sex practices and its correlates among commercial sex worker in Phnom Penh, Cambodia. Faculty of Graduate Studies, Mahidol University;
Or Vathanak. (1999) Unsafe sex practices and its correlates among commercial sex worker in Phnom Penh, Cambodia . Mahidol University/Bangkok.
Or Vathanak. Unsafe sex practices and its correlates among commercial sex worker in Phnom Penh, Cambodia. . Bangkok:Mahidol University, 1999.
Or Vathanak. (1999) Unsafe sex practices and its correlates among commercial sex worker in Phnom Penh, Cambodia . Mahidol University/Bangkok.