Tana, L., Delima, D., Kusumawardani, N. and Indrawati, L. 2021. Helmet use behavior and its relation to head injury of road traffic accident in Indonesia (Basic Health Research, 2018). Health Science Journal of Indonesia. 12, 1 (Jun. 2021), 56–65. DOI:https://doi.org/10.22435/hsji.v12i1.4655.