Chaiwong, S., Chanthanao, W., Loeskhampom, P., Wiwatanadate, P. and Sthiannopkao, S. 2018. The Comparison of Urinary Cadmium (UCd) and Urinary Lead (UPb) between 2007 and 2015 in a Population Living in a Zinc Contaminated Area: DOI: 10.32526/ennrj.17.2.2019.12. Environment and Natural Resources Journal. 17, 2 (Dec. 2018), 54–61.