Gaya APA
Education of workes. (1972).
Bangkok:
Friedrich ebert stiftung.
Gaya Chicago
Education of workes.
.
Bangkok:
Friedrich ebert stiftung,
1972.
Text.
Gaya MLA
Education of workes.
.
Bangkok:
Friedrich ebert stiftung,
1972.
Text.
Gaya Turabian
Education of workes.
Bangkok:
Friedrich ebert stiftung,
1972.
Print.