Reihe Green Energy and TechnologyMalti Goel ×Springer Singapore × Solar EnergyMade Simple for a Sustainable FutureMalti GoelSpringer SingaporeSoftcover2023 Solar EnergyMade Simple for a Sustainable FutureMalti GoelSpringer SingaporeHardcover2022 Solar EnergyMade Simple for a Sustainable FutureMalti GoelSpringer SingaporeeBook2022