1. Tropical climatology;Nieuwolt,1977
2. Climate of Indonesia;Sukanto;World Survey of Climatology,1969
3. H. Hoesin, Penelitian Ketersediaan Tenaga Radiasi Matahari di Indonesia, LIPPI, Lembaga Fisika Nasional (National Institute for Physics, Indonesian Institute of Sciences), Bandung, Indonesia (June 1983).
4. Solar radiation data No. 3, global solar radiation observations at Jakarta, 1969–1971;Sijatauw,1972
5. Solar radiation data No. 5, global solar radiation observations at Jakarta, 1972–1976;Sijatauw,1978