Ningsih, K. P., Purbobinuko, Z. K., Pradipta, D. A., Farhan, I. M. and Rohmah, K. L. (2024) “Klakson: Innovation in the Development of a Barber Johnson Charting Calculator Based on an Early Warning System (EWS)”, Procedia of Engineering and Life Science, 60, pp. 268-273. doi: 10.21070/pels.v6i0.1960.