1. Key Resource 1976-01-01 Perspectives for developing countries for controlling aquatic weeds and using them to best advantage, especially those methods that show promise for less-developed countries. ASIN:B001988YC8
  2. Key Resource 2010-01-20 Cleome, spiderplant, Hibiscus sabdariffa, roselle, Sorghum bicolor, sorghum, Acanthosicyos horridus, nara, Allanblackia stuhlmannii, Alstonia boonei, alstonia, Anogeissus leiocarpa, n'galama, Baillonella toxisperma, moabi, Ceiba pentandra, kapok tree, Celosia argentea, celosia, Curcuma longa,...