Hastomo, Widi, et al. “Transformasi Perilaku Menuju Zero Waste Melalui Edukasi Penggunaan Tumbler”. Wikrama Parahita : Jurnal Pengabdian Masyarakat, vol. 8, no. 2, Nov. 2024, pp. 341-7, https://doi.org/10.30656/jpmwp.v8i2.7695.