Suriadi S, Imamudin Yuliadi, Agus Tri Basuki. Evaluation of The Government Purchase Price Policy (HPP) of Grain On The Exchange Rate of Rice Farmers: An Analysis Study Of The Provinces of The Special Region of Yogyakarta and Central Java. IJERSC [Internet]. 2026 Oct. 12 [cited 2026 Oct. 17];7(5):492-50. Available from: https://ijersc.org/index.php/go/article/view/1081