Abdoerrachman H, Imaizumi S, Niimi S, Kumada M. Objective documented study on stipulated target-tone. Test of vocal controllability with the electromyography background mechanism. Med J Indones [Internet]. 1996Jul.1 [cited 2024Nov.18];5(3):158-64. Available from: http://mji.ui.ac.id/journal/index.php/mji/article/view/865