1. A study of microbial communities and interactions in extremely acidic environments.

   Kimura, S. (Awdur), Johnson, B. (Goruchwylydd), 2005

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

2. A study of novel acidophilic Firmicutes and their potential applications in biohydrometallurgy

   Holanda, R. (Awdur), Johnson, D. (Goruchwylydd), 12 Tach 2018

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

3. A study of the biogeochemistry and molecular biology of a chalybeate iron-rich spa (North Wales)

   Jones, R. M. (Awdur), Johnson, B. (Goruchwylydd), 2015

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

4. Acidophilic consortia and microbial interactions involved in securing mineral wastes and remediating mine waters

   Nancucheo, I. (Awdur), Johnson, B. (Goruchwylydd), Maw 2011

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

5. Development of a novel integrated system for bioremediating and recovering transition metals from acid mine drainage

   Araujo Santos, A. (Awdur), Johnson, D. (Goruchwylydd), 12 Tach 2018

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

6. Moderately thermophilic acidophiles and their use in mineral processing

   Okibe, N. (Awdur), Johnson, B. (Goruchwylydd), Ion 2002

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

7. Physiological and phylogenetic studies of some novel acidophilic mineral-oxidising bacteria

   Yahya, A. (Awdur), Johnson, B. (Goruchwylydd), Medi 2000

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth