Hermawan, B., Suhartoyo, H., Anandyawati, Sukisno, Gonggo, B., Hasanudin and Agustian, I. 2019. Spatial variability in soil water under adjacent mature oil palm and rubber plantations: application of a new dielectric method in evaluating soil water. International Journal of Agricultural Technology. 15, 2 (Mar. 2019), 261–272.