Shiva Purana
तपः कर्म जपो ध्यानं ज्ञानं चेति समासतः ॥ कर्मलिङ्गार्चनाद्यं च तपश्चान्द्रायणादिकम् ॥ ३७ ॥
In summary, these are austerities, rituals, chanting, meditation and knowledge. Karmalinga worship and other austerities and lunar eclipses.
english translation
tapaH karma japo dhyAnaM jJAnaM ceti samAsataH ॥ karmaliGgArcanAdyaM ca tapazcAndrAyaNAdikam ॥ 37 ॥
hk transliteration by Sanscript