द्रव्ययज्ञास्तपोयज्ञा योगयज्ञास्तथापरे। स्वाध्यायज्ञानयज्ञाश्च यतयः संशितव्रताः ॥

dravya-yajñās tapo-yajñā yoga-yajñās tathāpare swādhyāya-jñāna-yajñāśh cha yatayaḥ sanśhita-vratāḥ

Yet others the sacrifice of wealth, the sacrifice of austerity, the sacrifice of yoga, the sacrifice of silent reading and wisdom, men concentrated and of effectual vows;

In plain words: Krishna lists more kinds of offering. Some give their wealth. Some practice hardship and self-denial. Some practice yoga. Some study holy books quietly and seek knowledge. All of them are focused and keep firm vows.