Hyŏksin ŭi hwaksan kwajŏng
Subtitle: ta suhwak sin pʻumjong hwaksan kwajŏng ŭi punsŏk
By: Pak Yong-chʻi chŏ.
Edition: Chʻopʻan.
Publisher: Koryŏwŏn
Published: 1983
Place of publication: Sŏul
Language: kor
Number of pages: 248
Subjects: Agricultural innovations.
Notes: Bibliography: p. 206-224.
Summary in English with caption title: Diffusion of innovation.