Thurston, H. David, and Neil R. Miller. (1990) 1990. “Traditional Agriculture and Plant Pathology (TAPP) Database [ASCII Format for the Macintosh]”. Ithaca, NY: Cornell University Department of Plant Pathology.
storage
Dei, George J.S. (1990) 1990. “Indigenous Knowledge and Economic Production: The Food Crop Cultivation, Preservation and Storage Methods of a West African Community”. Ecology of Food and Nutrition 24 (1): 1-20. doi:10.1080/03670244.1990.9991115.