Sholikhah, Ummi, et al. “Morpho-Physiological Responses of Purbalingga and Purowkerto Local Black Rices to Drought Stress”. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), vol. 14, no. 4, July 2025, pp. 1148-55, doi:10.23960/jtepl.v14i4.1148-1155.