- **Articles**
  - https://www.wellandgood.com/lifestyle/upcycled-planter
  - https://corporate.homedepot.com/news/sustainability/plant-it-again-plant-pot-recycling-program
  - https://trumatter.in/home-improvement/diy-upcycle-a-plastic-bottle-to-a-planter/
  - https://lifeintrinidadandtobago.com/articles/home-garden/diy-step-by-step-guide-for-upcycled-plastic-bottle-planters/
  - https://www.gousto.co.uk/blog/diy-plant-pots-from-plastic-waste
  - https://www.thepondsfarmhouse.com/transform-plastic-pots-stunning-book-page-flower-pots/
  - https://arts.onehowto.com/article/how-to-make-a-flower-pot-from-recycled-materials-4864.html

- **Papers**
  - https://ijcrt.org/papers/IJCRT2304523.pdf
  - https://cordis.europa.eu/article/id/448181-reducing-plastic-waste-with-bio-based-biodegradable-plant-pots

- **Books**
  - https://scibizsw.com/20_THE%20OFFICIAL%20RASPBERRY%20PI%20PROJECTS%20BOOK%20v3.pdf

- **YouTube**
  - https://www.youtube.com/watch?v=1Wpno0wbweM
  - https://www.youtube.com/watch?v=YR2cfqrsCJs
  - https://www.youtube.com/watch?v=-ttg1SAblSc

- **Opensource Designs**
  - https://www.pillarboxblue.com/marimekko-plastic-bottle-planters/
  - https://www.instructables.com/Plastic-Bottle-Planters/
  - https://spicymoustache.com/8-easy-and-simple-steps-to-make-diy-hanging-pots-from-recycled-bottled-water-2/
  - https://www.ohohdeco.com/diy-recycled-plastic-container-into-planter/