Ikrawan, Y., S. Chaiseri, and O. Vungdeethum. “Effect of Fermentation Time on Pyrazine Concentration of Thai Forasero Beans”. Agriculture and Natural Resources, vol. 31, no. 4, Dec. 1997, pp. 479-87, https://li01.tci-thaijo.org/index.php/anres/article/view/241002.