Bibliografi : hlm. 413-415
Judul asli : "Solar Engineering Technology"
No Inv.: 774/S/Perp/89/1c~128796/S/Perp/14/1c
No Inv.: 1724-1725/BD/Perp/87/2c
No Inv.: 544/S/Perp/96/1c
Judul asli : "Al-Islamiyun wa Sarabud-Dimuqrathiyah"
Judul asli : "Mechanical Engineering Design"
No Inv.: 79391~ 66923-66929/P/00/7c~77198/S/01/1c