TY  - BOOK
AU  - Llarenas, Jason Melarpis.,
TI  - The strength analysis of concrete hollow block mixed with rice hull ash
PY  - 2004///
CY  - Nabua, Camarines Sur
PB  - Camarines Sur Polytechnic Colleges
N1  - Undergraduate Thesis (BSCE) - Civil Engineering
ER  -