1 1 20 Global dan Nasional Dua Bahasa Indonesia & Inggris ; Recovery of the Aviation and Tourism Industry : Global and National Billinguages Indonesia & English Martono K. Primary Author Ariawan Gunadi Additional Author Elfi Amir Additional Author Golden Mandala Additional Author Gracia Additional Author Gunardi Lie Additional Author Gunawan Djajaputra Additional Author Jemsly Hutabarat Additional Author Niru Anita Sinaga Additional Author Capt. Novyanto Widadi Additional Author Nunung Rusmiati Additional Author Potler Gultom Additional Author Rasji Additional Author Rudy Additional Author Suharto Abdul Majid Additional Author mixed material 9786234874181 Bojongsari Eureka Media Aksara 2022