Massah, Ahmad Reza, Roozbeh Javad Kalbasi, and Mitra Toghyani. “Sulfonated Polystyrene Montmorillonite Nanocomposite As a New and Efficient Catalyst for the Solvent-Free Mannich Reaction”. Iranian Journal of Catalysis 2, no. 1 (February 3, 2024). Accessed June 28, 2026. https://oiccpress.com/ijc/article/view/3720.