Media type: E-Article Title: k-Coterie and Coterie Join Operation Contributor: Djunaidy, E; Lawi, A; Amir, A K imprint: IOP Publishing, 2019 Published in: Journal of Physics: Conference Series Language: Not determined DOI: 10.1088/1742-6596/1341/4/042020 ISSN: 1742-6588; 1742-6596 Keywords: General Physics and Astronomy Origination: Footnote: Access State: Open Access