Aerosol Science and Technology – Articles (1982-present) | American Association for Aerosol Research.

African Journal of Biochemistry Research ( Afr. J. Biochem. Res.) – (2007-present) [PDF] | Academic Journals. Nairobi – Lagos.

African Journal of Biotechnology ( Afr. J. Biotechnol. ) – Articles (2002-present) [HTML, PDF] | Academic Journals. Nairobi – Lagos.

African Journal of Environmental Science & Technology ( Afr. J. Environ. Sci. Technol. ) – (2007-present) [PDF] | Academic Journals. Nairobi – Lagos.

African Journal of Food Science – (2007-present) [PDF] | Academic Journals. Nairobi – Lagos.

African Journal of Pharmacy and Pharmacology – (2007-present) [PDF] | Academic Journals. Nairobi – Lagos.

African Journal of Pure and Applied Chemistry – (2007-present) [PDF] | Academic Journals. Nairobi – Lagos.

Aggregate – (2020-present) | science beyond molecules: aggregation of ions, …, polymers, …, gels, composites, …, etc. | Wiley.

Agricultural and Biological Chemistry – Articles (1961-1991) [PDF] | Japan Society for Bioscience, Biotechnology and Agrochemistry | Continued by Bioscience, Biotechnology, and Biochemistry | Previous title: Bulletin of the Agricultural Chemical Society of Japan (1924-1960).

AIP Advances – (2011-present) [HTML, PDF] | all areas of applied physical science | open access, online-only community-led journal | American Institute of Physics.

Aldrichimica Acta – Articles (1968 – present) [PDF] | Each volume is in an entire PDF file | organic chemistry | Sigma-Aldrich Co.

Alloys – (2022-…) | MDPI.

AMB Express – (2011-по наст.время) [HTML, PDF] | research in industrial microbiology | Springer.

American Journal of Analytical Chemistry – (2010-present) | international journal | Scientific Research Publishing.

American Journal of Applied Sciences ( Am. J. Applied Sci. ) – (2004-present) [PDF] | multidisciplinary | Science Publications, New York.

American Journal of Biochemistry and Biotechnology ( AJBB ) – (2005-present) [PDF] | Science Publications, New York.

American Journal of Chemistry – Articles (2011-present) | Scientific & Academic Publishing.

American Journal of Environmental Sciences ( AJES ) – (2005-present) [PDF] | Science Publications, New York.

American Journal of Food Technology – (2006-present) [PDF, HTML, XML] | Academic Journals Inc., USA.

American Journal of Pharmacology and Toxicology ( Am. J. Pharm. & Toxicol. ) – (2006-present) [PDF] | Science Publications, New York.

American Journal of Science and Arts – (1818-1949) [JPG] | also American Journal of Science.

American Mineralogist – Full access (1916-1999) [PDF]; also: Selected articles, Deposit Items (2000-present) | International Journal of Earth and Planetary Materials | Mineralogical Society of America.