Safarov Bahri Zhumaevich, and Mambetsheripova Azhagul Abdiganieva. “Sulphation Of N-Alkyl Anilines With Oleum”. The American Journal of Engineering and Technology 3, no. 11 (November 21, 2021): 1–10. Accessed October 10, 2025. https://www.theamericanjournals.com/index.php/tajet/article/view/2147.