Mohd Bhukkar Adil Sjam, Bintang Ramadhani. Distribution and Frequency of Lactic Acid Among Trans Metro Pekanbaru (TMP) Bus Drivers Experiencing Low Back Pain. Smart: Journal of Healthcare. 2026;1(1):41-67. Accessed July 6, 2026. https://ejournal.smartpedia.co.id/index.php/SHealth/article/view/34