Top Books on wolli

1. Hancha wolli chahaejip

ISBN10 Number - 8972990019

Date of Publication - 1992

Number of Pages 333

Publisher - Mirae Munhwasa

2. Iyagi ch'iryo ŭi wŏlli wa silche

ISBN10 Number - 8999708020

Date of Publication - 2015

Number of Pages 430

Publisher - Hakchisa,Academician

Places in the book - Sŏul T'ŭkpyŏlsi