1. Chatudompan, S. (1987). Prevalence of urinary stones in Khon Kaen province. In Proceedings of the First National Symposium on Urinary Stone Disease and Renal Tubular Acidosis, Khon Kaen, Thailand, ed. Nimmannit, S., Tong-Aj-Yooth, L. and Tantiwong, A. Pp. 9-12. Bangkok: Medical Media.
2. Epidemiological investigation of urolithiasis in Israel;Frank;J. Urol.,1959
3. Studies of bladder stone disease in Thailand. III. Epidemiologic studies in Ubol province;Halstead;Am. J. Clin. Nutr.,1967
4. Frequency of urolithiasis in a prepaid medical care program;Hiatt;Am. J. Epidemiol.,1982