Gaya APA
Physics form 4. (2005).
Malaysia:
Danalis Distributors Sdu Bhd.
Gaya Chicago
Physics form 4.
-.
Malaysia:
Danalis Distributors Sdu Bhd,
2005.
Buku.
Gaya MLA
Physics form 4.
-.
Malaysia:
Danalis Distributors Sdu Bhd,
2005.
Buku.
Gaya Turabian
Physics form 4.
Malaysia:
Danalis Distributors Sdu Bhd,
2005.
Buku.