Chiyŏk tanwi ŭi nonggongsang yŏndae pangan kwa hwaktae kanŭngsŏng : k'ŏmyunit'i pijŭnisŭ chungchanggi yuksŏng pangan (1/3-ch'a yŏndo) = integration of agriculture with manufacturing and commerce at regional level and its growth prospects
Chuyo wŏnyenong sanmul kyŏngyŏng silt'ae punsŏk mit saengsanbi chŏlgam pangan = A study on the cost reduction and management analysis of the major horticultural crops