G. Upender Reddy, Addala Ajay Babu, Ch. Shashi Kumar, and T. Siva Nageswara Rao. “Bipolar Sum Distance in Neutrosophic Graphs”. Malaya Journal of Matematik 9, no. 01 (January 1, 2021): 1083–1085. Accessed November 22, 2024. https://www.malayajournal.org/index.php/mjm/article/view/1225.