Trisnawati, N. L. D. E., R. D. Kartika, and N. L. S. Kasih. “Business Continuity: Application of The Value of Catur Purusa Artha and Product Innovation in Holding Company of BUMDes”. International Journal of Social Science and Business, vol. 5, no. 3, Aug. 2021, pp. 303-10, doi:10.23887/ijssb.v5i2.36346.