Shitole, Balasaheb V., Nana V. Shitole, and Gopal K. Kakde. 2017. “Disodium Phosphate: A Highly Efficient Catalyst for One-Pot Synthesis of Substituted 3,4-Dihydropyrano[3,2-C]Chromenes”. Orbital: The Electronic Journal of Chemistry 9 (3), 131-34. https://periodicos.ufms.br/index.php/orbital/article/view/16490.