%0 Journal Article %A Sakahira, Fumihiro %A Tsumura, Hiroomi %T Social Network Analysis of Ancient Japanese Obsidian Artifacts Reflecting Sampling Bias Reduction %J Peer Community Journal %D 2024 %V 4 %I Peer Community In %U https://peercommunityjournal.org/articles/10.24072/pcjournal.409/ %R 10.24072/pcjournal.409 %G en %F 10_24072_pcjournal_409