Sellahewa, P. G.
Impact of self-reported voice symptoms on social and occupational life among primary school teachers and their knowledge of vocal hygiene techniques, habits and treatment options - Kelaniya University of Kelaniya 2013 - v, 56 p. 30 cm.
Student Research Reports
Impact of self-reported voice symptoms on social and occupational life among primary school teachers and their knowledge of vocal hygiene techniques, habits and treatment options - Kelaniya University of Kelaniya 2013 - v, 56 p. 30 cm.
Student Research Reports