I. F. T. Wong

• Soil-crop suitability classification for peninsular Malaysia
• Land use report of Johor
• Land use report of Kelantan
• Land use report of Terengganu
• Reconnaissance soil survey of Selangor
• The present land use of Sabah, 1970
• The present land use of Sabah, 1970
• The present land use of the Interior Residency, Sabah, 1970
• The present land use of the Interior Residency, Sabah, 1970
• The present land use of the West Coast Residency, Sabah, 1970
• The present land use of the West Coast Residency, Sabah, 1970
• The present land use of West Malaysia (1966)