Trisnawati, M., S. W. Respati, and M. I. M. Ain. “Analysis of The Impact of Side Barriers on Road Performance Case Study Jalan Ahmad Yani Balikpapan”. Nusantara Civil Engineering Journal, Vol. 1, no. 2, Oct. 2022, pp. 91 - 105, doi:10.32487/nuce.v1i2.397.