Tohutoro APA (7th ed.)
Gichira, R. (1987). Business education for secondary schools: Forms 1 and 2. Heinemann Kenya.
Tohutoru Kātū Chicago (17th ed.)
Gichira, Robert. Business Education for Secondary Schools: Forms 1 and 2. Nairobi: Heinemann Kenya, 1987.
Tohutoro MLA (9th ed.)
Gichira, Robert. Business Education for Secondary Schools: Forms 1 and 2. Heinemann Kenya, 1987.
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