Hidayat SI, Yudianto, Hidayat SW, Marpaung FA, Sihombing I, Prayoga Y, et al. Peran Ekonomi dan Pangan [Internet]. PT. Ghani Press Group; 2025 [cited 2026 Feb. 22]. Available from: https://e-book.ghanipress.com/index.php/ghanipress/catalog/book/4