A Comparative study on the acidity levels of deep-well water of selected areas of Las Piñas City /
Sekhanan, Christian E.
A Comparative study on the acidity levels of deep-well water of selected areas of Las Piñas City / Christian E. Sekhanan. - Las Piñas City, Philippines : Southville International School and Colleges, 2003. - 22 pages : illustrations ; 28 cm.
Includes bibliographical references.
Cross-cultural studies.
Premarital sex--Social aspects--Philippines.
Premarital sex--Social aspects--Korea (South).
PHS HQ 30.5 / .S45 2003
A Comparative study on the acidity levels of deep-well water of selected areas of Las Piñas City / Christian E. Sekhanan. - Las Piñas City, Philippines : Southville International School and Colleges, 2003. - 22 pages : illustrations ; 28 cm.
Includes bibliographical references.
Cross-cultural studies.
Premarital sex--Social aspects--Philippines.
Premarital sex--Social aspects--Korea (South).
PHS HQ 30.5 / .S45 2003