Gaya APA

WALUYANTI, S., SOFYAN, H. (2018). Standards of tiered teacher competence as a guide for continous professional development of vocational high school teachers . Yogyakarta: ADGVI in cooperation with graduate school of UNY.

Gaya MLA

WALUYANTI, Sri., SOFYAN, Herminarto. "Standards of tiered teacher competence as a guide for continous professional development of vocational high school teachers". Yogyakarta: ADGVI in cooperation with graduate school of UNY, 2018. Artikel.