Rahman A, Mardiningsih D, Dalmiyatun T. THE INFLUENCE OF THE ROLE OF AGRICULTURAL EXTENSION OFFICERS ON THE KNOWLEDGE LEVEL OF ROBUSTA COFFEE FARMERS ABOUT FARM CARD PROGRAM IN JUMO DISTRICT TEMANGGUNG REGANCY. agroland [Internet]. 25Jun.2020 [cited 19Dec.2024];5(1):23 -1. Available from: http://jurnal.faperta.untad.ac.id/index.php/agroland/article/view/219