Fathia, Qisthy Nur, Rita Nurmalina, and Megawati Simanjuntak. “Consumer’s Attitude and Willingness to Pay for Organic Rice”. Indonesian Journal of Business and Entrepreneurship (IJBE) 4, no. 1 (January 10, 2018): 11. Accessed February 25, 2021. http://jma.journal.ipb.ac.id/index.php/ijbe/article/view/19169.