Poppy Oktadiyani, Poppy Oktadiyani, Iwanuddin Iwanuddin, 和 Helwinsyah Helwinsyah. 2015. 《Ecotourism Development Strategy Of Wera Nature Recreation Park (NRP)》. Jurnal Wasian 2 (1): 9-20. https://doi.org/10.62142/psg00q90.