Chicken eggshell waste is a promising source of CaO which can be converted into heterogeneous catalyst materials. The purpose this study was to utilize derived from breed chicken produce biodiesel cooking oil through the transesterification process. A total 4 g material mixed with 200 and 60 methanol, then mixture stirred at speed 700 rpm for 6 h ± 40C. produced analyzed using GC-MS elucidate v...