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Muhammad Syahren A., . and Norziana Z. Z., . and Mohd Hisham M. N., . (2013) Nitrohumic acids NHA based compound fertilizer effects on the rate of nutrient release and ammonia volatilization in soil tests. [Proceedings Paper]
Haryati M., . and Muhammad Syahren A., . and M. Theeba, . and Norziana Z. Z., . (2013) The effect of value added product from depleted oil bleaching earth DOBE on Brassica alboglabra kailan. [Proceedings Paper]
Chan C. S., . and Muhammad Syahren A., . and Wong N. C., . (2009) Performance of nitro humic acid NHA based paddy grain booster. [Proceedings Paper]