Liliana Dewi, Christina Whidya Utami, Tommy Christian Efrata, Natalia Christiani, Christina, and Liestya Padmawidjaja, “Pengadaan Lomba Global Sustainovation Showcase Bagi Departemen Universitas Ciputra Surabaya”, leecom, vol. 6, no. 1, pp. 127–132, May 2023.