Valencia, Sharon B. Laboratory manual in quality control II : drug testing and assay with instrumentation / Sharon B. Valencia and June Louise R. Tan-Gaerlan. - Manila: Educational Pub. House, c2015. - viii, 117 p. : ill. ; 26 cm. Includes bibliography. ISBN: 978-971-513-332-6 (pbk.) Subjects--Topical Terms: Quality control.