Astria Hindratmo; Nurwahyudi Widhiyanta. Perancangan Strategi Sustainable Development Berbasis Co-Opetition Antara Sektor UMKM Produk Hasil Laut Dan Wisata Pantai Kenjeran Surabaya Guna Menciptakan Potensi Ecology Industrial Parks (EIP). JOURNAL OF RESEARCH AND TECHNOLOGY 2020, 6, 277-296.