“Computation in the Analysis of Techno-Economic of the Production of Al2O3 (Aluminum Oxide) Nanoparticles through Precipitation Method”, Int. J. Inform. Inf. Sys. and Comp. Eng., vol. 2, no. 1, pp. 65–76, Jun. 2021, doi: 10.34010/injiiscom.v2i1.5415.