The United Kedah Planting Association ; Persatuan Penanam-Penanam Bersatu Kedah, The United Kedah Planting Association ; Persatuan Penanam-Penanam Bersatu Kedah, . (1968). Annual report 1967 =: 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, . 1968. Annual report 1967 =: 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, . (1968). Annual report 1967 =: 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 1967 =: laporan tahunan. Alor Setar, Kedah: The United Kedah Planting Association. 1968.
