Home › Authors › Yaowaphō̜n Piyamāphō̜nchai. 👤 Yaowaphō̜n Piyamāphō̜nchai. 1 book Books by Yaowaphō̜n Piyamāphō̜nchai. Kānkamnot tamnǣng praphēt w Kānkamnot tamnǣng praphēt wichāchīp chapho̜ tām Phrarātchabanyat Rabīap Khārātchakān Phonlarư̄an, Phō̜. Sō̜. 2535 1993