Pengiran Shamsuddin. ม.ป.ป. Lighting energy management : in the case of road lightings in Negara Brunei Darussalam. , ม.ป.พ.;
Pengiran Shamsuddin. (ม.ป.ป.) Lighting energy management : in the case of road lightings in Negara Brunei Darussalam . ม.ป.พ./ม.ป.ท.
Pengiran Shamsuddin. Lighting energy management : in the case of road lightings in Negara Brunei Darussalam. . ม.ป.ท.:ม.ป.พ., ม.ป.ป.
Pengiran Shamsuddin. (ม.ป.ป.) Lighting energy management : in the case of road lightings in Negara Brunei Darussalam . ม.ป.พ./ม.ป.ท.