Analysis of the Environmental Drainage System of The Sugihwaras Village Apartment CASE STUDY OF APARTMENTS IN SIDOARJO REGENCY Article Sidebar PDF Published Sep 30, 2020 DOI https://doi.org/10.29138/ijti.v4i1.1164 Main Article Content Sistu Wilujeng Universitas Narotama Florianus Rooslan Edy Santosa Universitas Narotama