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Nani Hendryani, Suhadi and I Made Christian Binekada. The effect of income on regularity of paying contributions for independent National Health Insurance (NHI) participants post policy increased contributions in Muna regency, southeast Sulawesi province, Indonesia. World Journal of Advanced Research and Reviews, 2022, 13(2), 309-315. Article DOI: https://doi.org/10.30574/wjarr.2022.13.2.0155