Kp. Vegetation processes indicated by patterns revealed by a landscape ecological survey using remote sensing in Thai mountain forests / I. S. Zonneveld, L. Vels & W. van Wijngaarden. - Warszawa ; Białowieża, 1991. // Phytocoenosis Vol. 3 (N. S.) Supplementum Cartographiae Geobotanicae 2 (1991).

OLIS online

DNB online

Kp. Collections of maps and atlases in the Netherlands / Cornelis Koeman. - Leide, 1961. (Promotor: J. I. S. Zonneveld)

de wikipedia, dostęp 24.02.2023 https://de.wikipedia.org/wiki/Jan_Isaak_Samuel_Zonneveld