Allen Dizon, Edilberto Manahan, Jireh Besinio, Danella Dela Peña, Daniel De Leon, Joze Monsanto, Mariah Ocampo, Aaron Toledo, and Ana Velasquez. 2021. “Stability Study of Urine Creatinine Levels in Filter Paper Based Method Transport Medium”. International Journal of Progressive Research in Science and Engineering 2 (7):65-71. https://journal.ijprse.com/index.php/ijprse/article/view/329.