Shiva Purana
भक्तियोगो मतो देव्या आत्मनश्चैक्यभावनम् ॥ त्रयाणामपि योगानां क्रियायोगस्स उच्यते ॥ ९ ॥
Bhaktiyoga is the concept of the unity of the Ātman with the goddess. Of the three I mention Kriyāyoga in detail.
english translation
bhaktiyogo mato devyA AtmanazcaikyabhAvanam ॥ trayANAmapi yogAnAM kriyAyogassa ucyate ॥ 9 ॥
hk transliteration by Sanscript