Saifan, Abdulfatah Abdullah Abdu, and Sultan Abduh Al-horaibi. “Water Extract of Dragon Fruit Peel Catalyzed Synthesis of Dihydropyridines By Hantzsch Condensation”. Journal of Chemistry and Nutritional Biochemistry 2, no. 1 (April 30, 2021): 46–54. Accessed October 11, 2025. https://sabapub.com/index.php/jcnb/article/view/205.