TY - BOOK AU - Abdullah, Princess Sittie Asiah A. TI - The effects of the length of study time of grade six students in SISC on their academic performance in the core subjects AV - PGS LB 1062.6 .Ab136 2005 PY - 2005/// CY - Las PiƱas City, Philippines : PB - Southville International School and Colleges KW - Study skills KW - Effectiveness. KW - Study hours KW - Impact on academic performance KW - Time management KW - Students KW - Learning strategies KW - Elementary students N1 - Includes bibliographical references ER -