Services, E. L. Taksonomi tumbuhan (spermatophyta). Macmillan Ltd.
Chicago Style CitationServices, English Language. Taksonomi Tumbuhan (spermatophyta). Macmillan Ltd.
MLA CitationServices, English Language. Taksonomi Tumbuhan (spermatophyta). Macmillan Ltd.
Warning: These citations may not always be 100% accurate.