Truong, M., Tran, H., Pham, K., Nguyen, H., Ho, T. and Nguyen, A. 2014. Capability of gamma - gamma coincidence menthod to analyse arsenic and selenium. Science and Technology Development Journal. 17, 2 (Jun. 2014), 82-89. DOI:https://doi.org/https://doi.org/10.32508/stdj.v17i2.1317.