Buhari, Andi, et al. “The Difference of Capital Structure Based on Ownership, Variance, and Correlation: Venture Capital Firms in Indonesia”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 25, no. 3, Mar. 2016, pp. 128-41, https://gssrr.org/JournalOfBasicAndApplied/article/view/5344.