SeptianaR.M., AchsaniN.A. and IrawanT. 2018. The Effect of External Sourcing on The Financial Performance of Manufacturing Companies Listed in Indonesia Stock Exchange (BEI). Indonesian Journal of Business and Entrepreneurship (IJBE). 4, 2 (May 2018), 170. DOI:https://doi.org/10.17358/ijbe.4.2.170.