Gaya APA

Helianthusonfri, J. (2026). The Happy Investor-New Edition (Cet. 1). Jakarta: PT Elex Media Komputindo.

Gaya MLA

Helianthusonfri, Jefferly. "The Happy Investor-New Edition". Cet. 1 Jakarta: PT Elex Media Komputindo, 2026. BUKU.