Bibl. p. 167-170.
J. asli: Mechanics of materials.
Bibl. p. 102-106.
J. asli:Business management.
Jil. I: Kedongdong, mangga, nanas 50 p. Jil. II: Kolang-kaling, salak, pepaya 43 p. Jil. III: Ceremai, belimbing, jambu biji 52 p. Jil. IV: Pala, nangka 68 p.
Bibl. p. 69-71.