Viky Kristanto, Pengarang di Sustainable Mechanical Engineering and Design https://smed.petra.ac.id Inovasi Teknologi Otomotif dan Teknik Mesin Universitas Kristen Petra. Fri, 15 May 2026 16:15:47 +0000 id hourly 1 https://wordpress.org/?v=6.9.4 https://smed.petra.ac.id/wp-content/uploads/2023/06/cropped-Logo-Petra-Universitas-Kristen-Petra-Original-32x32.png Viky Kristanto, Pengarang di Sustainable Mechanical Engineering and Design https://smed.petra.ac.id 32 32