E. Ronitua Sitompul and T. Wahyu Adi, “Optimization of a Brownfield Microgrid Comprising a Diesel Power Plant, Solar Power Plant, and Energy Storage System to Support the Diesel Power Bunaken Island: Integration of HOMER Pro and PLS-SEM”, JISS, vol. 7, no. 8, pp. 3754–3765, Aug. 2026.