Llena, Ritchel B.  <br/><br/>
Level of competence in sentence-level grammar of freshman college students 
Ritchel B. Llena 
 -  2009 
 - xi, 81 leaves   28 cm. 
<br/><br/> Thesis (M.A.Eng Lang & Lit) -- Mariano Marcos State University-Graduate School, Laoag City 
<br/><br/>Bibliography: leaves 62-65