BiBLIOGRAPHY
http://www.contemporary-african-art.com/african-musical-instruments.html#sthash.2SKzpP4x.dpbs
http://www.britannica.com/EBchecked/topic/719112/African-music/57069/Slit-drums
http://www.african-music-safari.com/djembe-history.html
http://www.african-music-safari.com/african-thumb-piano.html
http://www.nscottrobinson.com/mbiraplayers.php
http://www.britannica.com/EBchecked/topic/719112/African-music/57069/Slit-drums
http://www.african-music-safari.com/djembe-history.html
http://www.african-music-safari.com/african-thumb-piano.html
http://www.nscottrobinson.com/mbiraplayers.php