Leksono, B., Budi Warsito and Sutikno 2025. Integrating Lean Canvas and SOS Validation for Early Validation of FTTH Design Automation. International Journal of Advances in Scientific Research and Engineering (IJASRE), ISSN:2454-8006, DOI: 10.31695/IJASRE. 11, 6 (Jun. 2025), 17–27. DOI:https://doi.org/10.31695/IJASRE.2025.6.3.