G. L. Gokul, K. R. Don. “Occlusal Morphological Variants of Permanent Mandibular Second Premolar - A Cross-Sectional Study”. Annals of the Romanian Society for Cell Biology (March 30, 2021): 5780–5793. Accessed April 16, 2024. https://annalsofrscb.ro/index.php/journal/article/view/2110.