Gaya APA
Hutagalung,M.S., Siregar,Astar. (2007).
Gemstones of life (permata kehidupan) .
:
[s.n].
Gaya Chicago
Hutagalung,M.S., Siregar,Astar.
Gemstones of life (permata kehidupan).
:
[s.n],
2007.
Text.
Gaya MLA
Hutagalung,M.S., Siregar,Astar.
Gemstones of life (permata kehidupan).
:
[s.n],
2007.
Text.
Gaya Turabian
Hutagalung,M.S., Siregar,Astar.
Gemstones of life (permata kehidupan).
:
[s.n],
2007.
Print.