Tantra, D. K. (2006). PENINGKATAN KOMPETENSI PTK PNF MELALUI KAJI TINDAK TERINTEGRASI BERBASIS KOMPETENSI (Integrated Competency-based Action Research). JIV-Jurnal Ilmiah Visi, 1(2), 24–33. https://doi.org/10.21009/JIV.0102.5