Noraishah Abdullah; Zurina Shaameri; Ahmad Sazali Hamzah; Mohd Fazli Mohammat. Synthesis of Trans-4-Hydroxyprolineamide and 3-Ketoproline Ethyl Ester for Green Asymmetric Organocatalysts. J. Adv. Res. Appl. Sci. Eng. Tech. 2024, 38, 97-108.