“FACTORS THAT OCCUR IN BUYING AND SELLING GHARAR: (CASE STUDY OF DUKU FARMERS IN BUYING AND SELLING THE IJON SYSTEM IN EMBACANG BARU ILIR VILLAGE)”, Reinforce: J. of Sharia Management, vol. 4, no. 2, pp. 131–143, Dec. 2025, doi: 10.21274/reinforce.v4i2.11210.