Ryōichi Yamamoto1946 · 8 obras en el catálogoObrasKKankyō bijinesu handobukkuKankyō bijinesu handobukkuEEko inobēshonEko inobēshon660 yi ren de xing fu hu zhu hui60 yi ren de xing fu hu zhu huiSShinsozai sentan zairyō no susumeShinsozai sentan zairyō no susumeAAmorufasu zairyōAmorufasu zairyōZZairyō no soshiki to kinōZairyō no soshiki to kinōSSeimeitai ni manabu zairyō kōgakuSeimeitai ni manabu zairyō kōgakuKKonpyūta ni yoru shirikon tekunorojīKonpyūta ni yoru shirikon tekunorojī