1. The winged bean—a high protein crop for the tropics National Academy of Sciences, Washington, DC, 1975, p. 41.
2. ; Vegetables for the hot humid tropics. Part I. The winged bean Psophocarpus tetragonolobus Southern Region Agricultural Research Service (USDA), New Orleans, Louisiana 70153, 1979, p. 22.
3. Winged bean - a food with many uses
4. Winged bean (Psophocarpus tetragonolobus). In Crop and Product Digest No. 3—Food Legumes Tropical Products Institute, London, 1979, pp. 399–409.
5. Workshop/Seminar on the Development of the Potential of the Winged Bean Philippine Council for Agricultural and Resources Research, 9–11 January 1978, Los Banos, Philippines.