S. Wulandari, A. Mallongi, Budimawan, A. B. Birawida, N. N. Noor, and L. M. Saleh, “Estimation Risk Exposure to Nickel and Cobalt in Air Using a Monte Carlo Simulation”, J. Hum. Earth Future, vol. 6, no. 4, pp. 790–805, Dec. 2025.