TY  - BOOK
AU  - San Jose, Nina Elaine C. 
AU  -  Mary Margarette R. Montalla, Louise Sheanne S. Opeña, Darren Paul S. Pascual, Arthur Vince Ivan P. Racoma, Jose Emilio V. Ricafrante and Leandro M. Zamora
TI  - Determining the pH level of water in different water stations in Barangay Concepcion Uno, Marikina City in correspondence to the environment protection agency standards with the use of litmus paper
AV  - TD 430  V36 2019
PY  - 2019///
CY  - Marikina City
KW  - 1. Drinking water -- Philippines -- Standards
N1  - Includes: references and appendices
ER  -