3[1]White, K. (1995) Enhancement of Nitrogen removal in subsurface flow constructed wetlands employing a 2 - stage configuration, an unsaturated zone and recirculation. Water Science and Technology. 32(3), 59～67.
4[2]Conley, L. Dick, R. and Lion, L. ( 1991)An assessment of the root zone method of wastewater treatment. Research Journal of the water Pollution Control Federation. 63,239～247.
5[3]Wood, A. (1995) Constructed wetlands in water pollution control.. Fundamentals to their understanding. Water Science and Technology. 32(3),21～29.
6[4]Gersberg, R., Elkins, B., Lyon, S. and Goldman, C. ( 1986)Role of aquatic plants in wastewater treatment by artificial wetlands. Water Research. 20,363～368.
7[5]Kadlec, H. (1995)Overview:Surface flow constructed wetlands. Water Science and Technology. Vol.32(3), 1～12.
8[6]Reed, S., Crites, R. & Middlebrooks, J. (1995)Natural Systems for Waste Management, Second Editon, McGraw - Hill Inc. New York, NY
9[7]Harrison, M. ( 1997)J. F. New and Associates. Personal Communications.
10[8]Salvato, J. (1992)Environmental Engineering and Sanitation. Forth Edition, John Wiley & Inc. New York, NY
