Dr. Isdiriayani was retired since June 2020. A farewell party was held at Siera Cafe & Lounge on Saturday, August 15, 2020, attended by colaborators, student and alumnus of Laboratory of Process Safety and Energetic Electrochemistry. We gratefully thank to Dr. Isdiriayani for her dedication and contribution. Her teaching is significantly affect to the development of ProSEE Laboratory.