Sengketa Agraria:Pengusaha Perkebunan Melawan Petani

Planters against peasants the agrarian struggle in East Sumatra 1947-1958

Planter and peasant Colonial policy and the agrarian struggle in East Sumatra 1865-1947

Pioneer settlement in the Asiatic tropies Studies in land utilization and agricultural colonization in South Eastern Asia

Population and land utilization

PLANTER AND PEASANT : COLONIAL POLICY AND THE AGRARIAN STRUGGLE IN EAST SUMATERA 1863-1947

TOEAN KEBOEN DAN PETANI: POLITIK KOLONIAL DAN PERJUANGAN AGRARIA DI SUMATERA TIMUR 1863-1947