Tamimah, N., & Siregar, A. C. P. (2026). Detecting Optical Fiber Wavelength Shifts Induced by Sugar Solution Concentration Using Lagrange Interpolation. AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment), 10(2), 373–377. https://doi.org/10.29165/ajarcde.v10i2.1034 (Original work published June 6, 2026)