AKLIMAWATI, L.; DHARMAWAN, B.; WIDHIONO MZ, I. The Surge in Indonesian Robusta Coffee Price: The Interaction of Substitute Commodity Prices and Exchange Rates on Robusta Price Behavior. Pelita Perkebunan (a Coffee and Cocoa Research Journal), v. 41, n. 3, p. 305-324, 31 Dec. 2025.