Home › Authors › Roy Clive Abraham 👤 Roy Clive Abraham 6 books Biography A key figure in African language scholarship during the twentieth century. He worked for over thirty years on a wide range of disparate languages. Books by Roy Clive Abraham The principles of Amharic The principles of Amharic 1942 A dictionary of the Tiv langua A dictionary of the Tiv language 1940 The principles of Hausa The principles of Hausa 1934 The grammar of Tiv The grammar of Tiv 1900 The principles of Idoma The principles of Idoma 1900 The principles of Tiv 1900