Isada, Fumihiko, и Yuriko Isada. „Network Structure of Inter-Organizational Alliances in the Health Insurance Industry Undergoing Digitalization“. ENTRENOVA - ENTerprise REsearch InNOVAtion 9, no. 1 (Јуни 7, 2024): 281–289. приступљено Јули 1, 2024. https://hrcak.srce.hr/ojs/index.php/entrenova/article/view/31456.