http://elibrary.supremecourt.gov.ph/index10.php?doctype=Executive%20Orders&docid=a45475a11ec72b843d74959b60fd7bd6468ebf67d75be

http://elibrary.supremecourt.gov.ph/index10.php?doctype=Executive%20Orders&docid=a45475a11ec72b843d74959b60fd7bd6468ebf67d75be
http://elibrary.supremecourt.gov.ph/index10.php?doctype=Executive%20Orders&docid=12130670201367678985
http://www.chanrobles.com/legal3car.html
http://www.chanrobles.com/administrativeorders/administrativeorderno160.html