Julio Alfi Kartika Putra, J.A.K.P. 2025. The Effect of Intellectual Capital, Behavior Direction, Effort Level, and Persistence Level on Employee Performance as an Effort to Improve Productivity at PT. Global Offset Sejahtera. Indonesian Journal Economic Review (IJER). 5, 2 (Oct. 2025), 317–326. DOI:https://doi.org/10.59431/ijer.v5i2.630.