Wuryaningsih, E. W., F. Deviantony, and N. D. Susilowati. “The Relationship Between Self-Efficacy and Subjective Well Being Among Tobacco Farmers”. Jurnal Keperawatan Padjadjaran, vol. 8, no. 2, Aug. 2020, pp. 102-9, doi:10.24198/jkp.v8i2.1377.