Haeoe kongmul sijang chŏngbo sisŭt'em unyŏng saŏp : kukche kongmul sijang punsŏk kwa haeoe kongmul sijang chŏngbo ch'egye kuch'uk mit unyŏng (1/3-yŏnch'a) = Operation of world grain market information system
Kukche kongmul sijang punsŏk kwa haeoe kongmul sijang chŏngbo ch'egye kuch'uk mit unyŏng = Analysis of grain market and establishment and operation of world grain market information system
Kukche kongmul sijang punsŏk kwa haeoe kongmul sijang chŏngbo sisŭt'em kuch'uk mit unyŏng = Analysis of world grain market and operation of world grain market information system