식물학술어해설집 singmul haksurŏ haesŏlchip 조선식물도감부록 Chosŏn singmul togam Purok - 도봉섭 Pong-sŏp To (조선민주주의인민공화국과학원 Chosŏn Minjujuŭi Inmin Koghwaguk Kwahagwŏn, 1956)