Harefa, D. , Silitonga, S. and Pakpahan, R. 2020. Study Of The Elements Of Facade Of Colonial Buildings, Case Study: Palm Oil Research Centre (PPKS) And Agency Of Sumatera Plantation Companies (BKS - PPS). Jurnal Koridor. 11, 02 (Sep. 2020), 62-67. DOI:https://doi.org/10.32734/koridor.v11i02.4645.