Supriya Bhunia และ Ganesh Ghorai. (2021) A new approach to fuzzy group theoryusing (??, ??) -Pythagorean fuzzy sets. <i>Songklanakarin Journal of Science and Technology (SJST)</i>, <i>43</i>(1), 295-306.Supriya Bhunia และ Ganesh Ghorai. "A new approach to fuzzy group theoryusing (??, ??) -Pythagorean fuzzy sets". Songklanakarin Journal of Science and Technology (SJST) 43 (2021):295-306.Supriya Bhunia และ Ganesh Ghorai. A new approach to fuzzy group theoryusing (??, ??) -Pythagorean fuzzy sets. Research and Development Office, Prince of Songkla University:ม.ป.ท. 2021.