Vidhya, D., T. Yogalakshmi, and V. Visalakshi. “Fuzzy Rough G-Border and Fuzzy Rough G-Exterior in Fuzzy Rough Topological Groups”. International Journal of Engineering & Technology 7, no. 4.10 (October 2, 2018): 970–973. Accessed May 5, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/26637.