Wutphiriya-angkun, S. “Anteroposterior Stability and Knee Strength After Anterior Cruciate Ligament Reconstruction in Patients Older Than 50 Years Compared to Younger Patients”. Journal of Southeast Asian Orthopaedics, vol. 45, no. 3-4, Oct. 2021, pp. 13-19, https://jseaortho.org/index.php/jsao/article/view/16.