Wisittammasri, W. and Chotpantarat, S. 2016. Isotope Evidence of Rainfall and Groundwater for Tracing Recharge Areas in Kaeng Khoi District, Saraburi Province, Thailand. Applied Environmental Research. 38, 3 (Nov. 2016), 49–58. DOI:https://doi.org/10.35762/AER.2016.38.3.5.