Lee Soon Ching. (1993). Fokus peperiksaan KBSM: Kimia SPM tingkatan 4 dan 5. Penerbit Fajar.
Chicago Style (17th ed.) CitationLee Soon Ching. Fokus Peperiksaan KBSM: Kimia SPM Tingkatan 4 Dan 5. K.Lumpur: Penerbit Fajar, 1993.
MLA (9th ed.) CitationLee Soon Ching. Fokus Peperiksaan KBSM: Kimia SPM Tingkatan 4 Dan 5. Penerbit Fajar, 1993.
Warning: These citations may not always be 100% accurate.