Gaya APA
Lubis, K.
(2009).
Sarmedi Purba: titian nadi dokter pelangi
.
Medan:
Mitramedia Communications.
Gaya MLA
Lubis, Khairiah.
"Sarmedi Purba: titian nadi dokter pelangi".
Medan:
Mitramedia Communications,
2009.
Text.