Barredo, Joanna Mae E. <br/><br/>
Ethnolinguistic vitality of Subanen language in Songoy San Pablo, Zamboanga del Sur/ 
Joanna E. Barredo, Rodelyn N. Copio, Wendell N. Copio, Jason P. Tingcang, Riza Jane S. Silagan 
 - Mati, San Miguel, Zamboanga del Sur :  School of Arts and Sciences,   J.H. Cerilles State College,   2024. 
 - viii, 150 leaves 
<br/><br/> Includes bibliography (84-91 leaves)