Hidayati, Nurul, et al. “Kajian Penggunaan Nutrisi Anorganik Terhadap Pertumbuhan Kangkung (Ipomoea Reptans Poir) Hidroponik Sistem Wick: Study of the Use of Inorganic Nutrition on the Growth of Kale (Ipomoea Reptans Poir) Wick Hydroponics System”. Daun: Jurnal Ilmiah Pertanian Dan Kehutanan, vol. 4, no. 2, Dec. 2017, pp. 75-81, https://doi.org/10.33084/daun.v4i2.81.