[1]Cha, M.K., J.S. Kim, and Y.Y. Cho. 2012. Growthresponse of lettuce to various levels of EC andlight intensity in plant factory. J. Bio-Env. Con.21(4):3.5-311.
[2]Cha, M.K., J.S. Kim, and Y.Y. Cho. 2012. Growthresponse of lettuce to various levels of EC and light inten-sity in plant factory. J. Bio-Env. Con. 21(4):3.5-311.