WASET
Khan, S. , Alam, A. , Khalifa, O. , Islam, M. , Zainudin, Z. , Khan, M. , Pauzi, N.. "A High Accuracy Measurement Circuit for Soil Moisture Detection". World Academy of Science, Engineering and Technology, Open Science Index 11, International Journal of Electrical and Computer Engineering (2007), 1(11), 1722 - 1725.