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Smith, G D and Coughlan, K J and Yule, D F and Laryea, K B and Srivastava, K L and Thomas, N P and Cogle, A L (1992) Soil management options to reduce runoff and erosion on a hardsetting Alfisol in the semi-arid tropics. Soil & Tillage Research, 25 (2-3). pp. 195-215. ISSN 0167-1987
Thomas, N P (1990) A Single-board Computer-based Data Acquisition System for Agricultural Machinery Evaluation. Agricultural Mechanization in Asia, Africa and Latin America, 21 (2). pp. 73-76.
Thomas, N P and El-Swaify, S A (1989) Construction and calibration of a rainfall simulator. Journal of Agricultural Engineering Research, 43 (1). pp. 1-9.