?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Soebagyo%2C+Joko&rft.aufirst=Joko&rft.aulast=Soebagyo&rft.issn=2775-8435&rft.title=International+Journal+of+Progressive+Mathematics+Education&rft.atitle=Stochastic+Block+Model+Reveals+Maps+ofIn+Applied+Mathematics+Studies+Using+VOS+Viewer&rft.genre=article