[1]
M. T. Diputado Jr, M. B. Loreto Jr, and J. I. Mangmang, “Evaluation of a simple re-circulating hydroponic system for sweet pepper (Capsicum annum L.) and pechay (Brassica napus L.)”, Ann. Trop. Res, vol. 27, no. 2, pp. 18–30, Dec. 2005.