Wawolangi, Jeanne Asteria, and Deograsias Yoseph Yustinianus Ferdinand. “Penerapan Metode Proper Matching Pada Perusahaan Kontraktor”. BIP’s JURNAL BISNIS PERSPEKTIF, vol. 12, no. 2, July 2020, pp. Hal. 135 - 148, doi:10.37477/bip.v12i2.100.