Electronic combination lock with alarms/
Demanarig, Hazel D.,
Electronic combination lock with alarms/ Hazel D. Demanarig, Jennifer B. Oblina, Ma. Charina L. Sapinoso - Nabua, Camarines Sur : Camarines sur Polytechnic Colleges ; 2008. - 76 leaves
Undergraduate Thesis (BSECE) - Electronics Engineering
Electronic combination lock with alarms/ Hazel D. Demanarig, Jennifer B. Oblina, Ma. Charina L. Sapinoso - Nabua, Camarines Sur : Camarines sur Polytechnic Colleges ; 2008. - 76 leaves
Undergraduate Thesis (BSECE) - Electronics Engineering