Gaya APA

Sumarni, . (2009). School culture and school performance : Study of higher-succeses and lower succeses senior high school . Jakarta: 2X7.3 Tib i.

Gaya MLA

Sumarni, . "School culture and school performance : Study of higher-succeses and lower succeses senior high school". Jakarta: 2X7.3 Tib i, 2009. Jurnal.