Cao, J., Chiu, C., Chen, G., Xiao, Z., Chen, L. and Lai, W. 2016. THE LONG -TERM VARIATION OF ORGANIC CHARACTERISTICS IN DONGGANG RIVER USING EXCITATION EMISSION FLUORESCENT MATRIX (EEFM) INTEGRATED WITH PARALLEL FACTOR ANALYSIS (PARAFAC) . MATTER: International Journal of Science and Technology. 2, 3 (Nov. 2016), 01–09. DOI:https://doi.org/10.20319/Mijst.2016.21.0109.