400 scientific publications (recommended) on topics: environment, ecology, water, nature conservation: [keywords in: Greek, Gujarati, Haitian (Creole), Hausa, Hawaiian] https://5bio5.blogspot.com/2018/05/gr.html The list of the 400 publications, online free: https://www.researchgate.net/publication/323869598 ;

400 scientific publications (recommended) on topics: 
environment, ecology, water, nature conservation: 
[keywords in: 

Greek, Gujarati, Haitian (Creole), Hausa, Hawaiian]

 
https://5bio5.blogspot.com/2018/05/gr.html

The list of the 400 publications, online free:

https://www.researchgate.net/publication/323869598 ;

Greek:
400 επιστημονικές δημοσιεύσεις (συνιστάται) σε θέματα:

περιβάλλον, οικολογία, ποιότητα των υδάτων, προστασία της φύσης, έλεγχος της ρύπανσης:

Ο κατάλογος των 400 δημοσιεύσεων, online δωρεάν:

https://www.researchgate.net/publication/323869598;
** 
Gujarati:
વિષયો પર 400 વૈજ્ઞાનિક પ્રકાશનો (ભલામણ):

પર્યાવરણ, ઇકોલોજી, પાણીની ગુણવત્તા, પ્રકૃતિ સંરક્ષણ, પ્રદૂષણ નિયંત્રણ:

400 પ્રકાશનોની યાદી, ઓનલાઇન મફત:

https://www.researchgate.net/publication/323869598;
**
Haitian (Creole)
400 piblikasyon syantifik (rekòmande) sou sijè:

anviwònman, ekoloji, bon jan kalite dlo, konsèvasyon nati, kontwòl polisyon:

Lis 400 piblikasyon yo, sou entènèt gratis:

https://www.researchgate.net/publication/323869598;
**
Hausa
400 wallafe-wallafe (shawarar) akan batutuwa:

muhalli, ilimin halayyar muhalli, ingancin ruwa, kiyaye yanayin yanayi, kulawar gurbatawa:

Jerin littattafai 400, kyauta kyauta:

https://www.researchgate.net/publication/323869598;
**   
Hawaiian
400 mau hua'ōleloʻepekema (i'ōleloʻia) ma nā kumuhana:

ka honua, ka loina, ka maikaʻi o ka wai, ka mālamaʻana i ke kino, ka hoʻoponopono lepo.

Ka papa inoa o nā 400 paʻi, puke pūnaewele:

https://www.researchgate.net/publication/323869598;
**