1.

Dutch Colonial Infrastructure Development in Takengon, 1904-1942

1.

KEANEKARAGAMAN JENIS TERIPANG (HOLOTHUROIDEA) DI PERAIRAN PANTAI IBOIH KOTA SABANG

1.

Management, Exploitation and Contract Labor of the Pine Merkusi Forest in Tanah Gayo during the Dutch Colonial Period

2.

Management, Exploitation and Contract Labor of the Pine Merkusi Forest in Tanah Gayo during the Dutch Colonial Period

3.

Management, Exploitation and Contract Labor of the Pine Merkusi Forest in Tanah Gayo during the Dutch Colonial Period