K. A. Rezkita, A. Kurniawan, and A. F. Tanira, “Structural strength evaluation of a modular toddler bicycle: Frame design and material considerations for children’s progressive development”, Mech. Eng. for Soc. and Ind., vol. 5, no. 1, pp. 217–229, Jun. 2025, doi: 10.31603/mesi.12961.