TY  - BOOK
AU  - Hagonoy, Angelbert C.
AU  -  Sebuco, Ronesil E.
AU  - Sumicad Sammy R.
TI  - Rice hull ash partial replacement of cement in concrete hollow blocks
PY  - 2020///
CY  - Mati, San Miguel, Zamboanga del Sur
PB  - J.H. Cerilles State College
ER  -