Apa, Michael Aglua.
Coffee growing in Kupau village, Simbu Province / Michael Aglua Apa. - [Port Moresby] University of Papua New Guinea :Dept. of Primary Industry 1978. - 11 leaves map 30 cm. - History of agriculture working paper no. 23. .
Coffee industry--Papua New Guinea--Simbu Province.
Agriculture--Papua New Guinea--Simbu Province.
Coffee growing in Kupau village, Simbu Province / Michael Aglua Apa. - [Port Moresby] University of Papua New Guinea :Dept. of Primary Industry 1978. - 11 leaves map 30 cm. - History of agriculture working paper no. 23. .
Coffee industry--Papua New Guinea--Simbu Province.
Agriculture--Papua New Guinea--Simbu Province.