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Luo และผู้แต่งคนอื่นๆ. (1994) Piggery wastewater treatment by three-step aquatic plant system . Chiang Mai University/Chiang Mai.
Luo และผู้แต่งคนอื่นๆ. Piggery wastewater treatment by three-step aquatic plant system. . Chiang Mai:Chiang Mai University, 1994.
Luo และผู้แต่งคนอื่นๆ. (1994) Piggery wastewater treatment by three-step aquatic plant system . Chiang Mai University/Chiang Mai.