Moutari, Souley Kallo, Ayouba Mahamane Abdoulkadri, Abdourahamane Saidou Boulhassane, Adamou Rabani, and Ikhiri Khalid. 2018. “Determination Contents of Total Phenolic Pigments and Spectrophotometric Characterization of Crude Extracts of Ten Tinctorial Plants of Niger Which Is Usable in Solar Energy”. European Scientific Journal, ESJ 14 (33), 389. https://doi.org/10.19044/esj.2018.v14n33p389.