The United Kedah Planting Association ; Persatuan Penanam-Penanam Bersatu Kedah, The United Kedah Planting Association ; Persatuan Penanam-Penanam Bersatu Kedah, . (1972). Annual report 1971 =: laporan tahunan. Alor Setar, Kedah: The United Kedah Planting Association.
Chicago
The United Kedah Planting Association ; Persatuan Penanam-Penanam Bersatu Kedah, The United Kedah Planting Association ; Persatuan Penanam-Penanam Bersatu Kedah, . 1972. Annual report 1971 =: laporan tahunan. Alor Setar, Kedah: The United Kedah Planting Association.
Harvard
The United Kedah Planting Association ; Persatuan Penanam-Penanam Bersatu Kedah, The United Kedah Planting Association ; Persatuan Penanam-Penanam Bersatu Kedah, . (1972). Annual report 1971 =: laporan tahunan. Alor Setar, Kedah: The United Kedah Planting Association.
MLA
The United Kedah Planting Association ; Persatuan Penanam-Penanam Bersatu Kedah, The United Kedah Planting Association ; Persatuan Penanam-Penanam Bersatu Kedah, . Annual report 1971 =: laporan tahunan. Alor Setar, Kedah: The United Kedah Planting Association. 1972.
