Saftari, Liana Nafisa, et al. “‘Influence of Visual Input and Surface Stability on Gastrocnemius Muscle Activation During Quiet Standing Using Multi-Feature EMG and Bilateral Assessment.’”. Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics, vol. 8, no. 1, Feb. 2026, pp. 80-93, https://doi.org/10.35882/ijeeemi.v8i1.297.