西 西山豊 🌐日本語 Español Deutsch Wiki ↗ 🎓 Osaka University of Economics🏫 Zeze High School🎂 Born 1948📍 From Shiga Prefecture💼 Mathematician 🌐 Wikipedia in other languages:Japanese (ja) ↗Spanish (es) ↗German (de) ↗ 🐾 Year of the Rat 🏙️ About Shiga Prefecture ↗